64030320 has 120 divisors (see below), whose sum is σ = 217213776. Its totient is φ = 16902144.

The previous prime is 64030303. The next prime is 64030357. The reversal of 64030320 is 2303046.

64030320 is a `hidden beast` number, since 640 + 3 + 0 + 3 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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 = 64030293 and 64030302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80967 + ... + 81753.

Almost surely, 2^64030320 is an apocalyptic number.

64030320 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 64030320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108606888).

64030320 is an abundant number, since it is smaller than the sum of its proper divisors (153183456).

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

64030320 is a wasteful number, since it uses less digits than its factorization.

64030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 910 counting only the distinct ones).

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

The square root of 64030320 is about 8001.8947756141. The cubic root of 64030320 is about 400.0631566942.

Adding to 64030320 its reverse (2303046), we get a palindrome (66333366).

The spelling of 64030320 in words is "sixty-four million, thirty thousand, three hundred twenty".