64118934 has 96 divisors (see below), whose sum is σ = 164571264. Its totient is φ = 17821440.

The previous prime is 64118927. The next prime is 64118947. The reversal of 64118934 is 43981146.

64118934 is a `hidden beast` number, since 641 + 1 + 8 + 9 + 3 + 4 = 666.

It is a super-2 number, since 2×64118934² = 8222475394592712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 144517 + ... + 144959.

It is an arithmetic number, because the mean of its divisors is an integer number (1714284).

Almost surely, 2^64118934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64118934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82285632).

64118934 is an abundant number, since it is smaller than the sum of its proper divisors (100452330).

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

64118934 is a wasteful number, since it uses less digits than its factorization.

64118934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 519 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 64118934 is about 8007.4299247636. The cubic root of 64118934 is about 400.2476258386.

The spelling of 64118934 in words is "sixty-four million, one hundred eighteen thousand, nine hundred thirty-four".