64957380 has 48 divisors (see below), whose sum is σ = 182394240. Its totient is φ = 17273088.

The previous prime is 64957379. The next prime is 64957393. The reversal of 64957380 is 8375946.

It is a happy number.

It is a super-2 number, since 2×64957380² = 8438922432928800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23217 + ... + 25863.

It is an arithmetic number, because the mean of its divisors is an integer number (3799880).

Almost surely, 2^64957380 is an apocalyptic number.

64957380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64957380 is an abundant number, since it is smaller than the sum of its proper divisors (117436860).

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

64957380 is a wasteful number, since it uses less digits than its factorization.

64957380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068 (or 3066 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 64957380 is about 8059.6141346841. The cubic root of 64957380 is about 401.9846780131.

The spelling of 64957380 in words is "sixty-four million, nine hundred fifty-seven thousand, three hundred eighty".