38690964 has 72 divisors (see below), whose sum is σ = 107627520. Its totient is φ = 11644992.

The previous prime is 38690957. The next prime is 38690983. The reversal of 38690964 is 46909683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21117 + ... + 22875.

Almost surely, 2^38690964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38690964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53813760).

38690964 is an abundant number, since it is smaller than the sum of its proper divisors (68936556).

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

38690964 is a wasteful number, since it uses less digits than its factorization.

38690964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 38690964 is about 6220.2061059100. The cubic root of 38690964 is about 338.2230359215.

The spelling of 38690964 in words is "thirty-eight million, six hundred ninety thousand, nine hundred sixty-four".