64120276 has 48 divisors (see below), whose sum is σ = 130798080. Its totient is φ = 27216000.

The previous prime is 64120261. The next prime is 64120289. The reversal of 64120276 is 67202146.

It is a super-2 number, since 2×64120276² = 8222819588632352, which contains 22 as substring.

It is a congruent number.

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, 38746 + ... + 40366.

It is an arithmetic number, because the mean of its divisors is an integer number (2724960).

Almost surely, 2^64120276 is an apocalyptic number.

It is an amenable number.

64120276 is an abundant number, since it is smaller than the sum of its proper divisors (66677804).

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

64120276 is a wasteful number, since it uses less digits than its factorization.

64120276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696 (or 1694 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 64120276 is about 8007.5137214993. The cubic root of 64120276 is about 400.2504181941.

It can be divided in two parts, 641202 and 76, that added together give a triangular number (641278 = T₁₁₃₂).

The spelling of 64120276 in words is "sixty-four million, one hundred twenty thousand, two hundred seventy-six".