63030240 has 432 divisors, whose sum is σ = 273375648. Its totient is φ = 12939264.

The previous prime is 63030211. The next prime is 63030241. The reversal of 63030240 is 4203036.

63030240 is a `hidden beast` number, since 630 + 30 + 2 + 4 + 0 = 666.

It is a super-2 number, since 2×63030240² = 7945622308915200, which contains 22 as substring.

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

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63030241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1703502 + ... + 1703538.

It is an arithmetic number, because the mean of its divisors is an integer number (632814).

Almost surely, 2^63030240 is an apocalyptic number.

63030240 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 63030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136687824).

63030240 is an abundant number, since it is smaller than the sum of its proper divisors (210345408).

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

63030240 is a wasteful number, since it uses less digits than its factorization.

63030240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 67 counting only the distinct ones).

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

The square root of 63030240 is about 7939.1586455997. The cubic root of 63030240 is about 397.9693755213.

Adding to 63030240 its reverse (4203036), we get a palindrome (67233276).

The spelling of 63030240 in words is "sixty-three million, thirty thousand, two hundred forty".