64304608 has 48 divisors (see below), whose sum is σ = 137214000. Its totient is φ = 29546496.

The previous prime is 64304599. The next prime is 64304609. The reversal of 64304608 is 80640346.

It is a super-2 number, since 2×64304608² = 8270165220067328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64304608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64304609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22018 + ... + 24766.

It is an arithmetic number, because the mean of its divisors is an integer number (2858625).

Almost surely, 2^64304608 is an apocalyptic number.

64304608 is a gapful number since it is divisible by the number (68) 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 64304608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68607000).

64304608 is an abundant number, since it is smaller than the sum of its proper divisors (72909392).

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

64304608 is a wasteful number, since it uses less digits than its factorization.

64304608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2811 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 64304608 is about 8019.0154009080. The cubic root of 64304608 is about 400.6335958608.

The spelling of 64304608 in words is "sixty-four million, three hundred four thousand, six hundred eight".