63040320 has 336 divisors, whose sum is σ = 256763520. Its totient is φ = 13897728.

The previous prime is 63040319. The next prime is 63040321. The reversal of 63040320 is 2304036.

63040320 is a `hidden beast` number, since 630 + 4 + 0 + 32 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (63040319) and next prime (63040321).

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 63040293 and 63040302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63040321) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1068451 + ... + 1068509.

Almost surely, 2^63040320 is an apocalyptic number.

63040320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63040320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128381760).

63040320 is an abundant number, since it is smaller than the sum of its proper divisors (193723200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63040320 is a wasteful number, since it uses less digits than its factorization.

63040320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 63040320 is about 7939.7934481950. The cubic root of 63040320 is about 397.9905892407.

Adding to 63040320 its reverse (2304036), we get a palindrome (65344356).

It can be divided in two parts, 630 and 40320, that multiplied together give a square (25401600 = 5040²).

The spelling of 63040320 in words is "sixty-three million, forty thousand, three hundred twenty".