386996904 has 144 divisors (see below), whose sum is σ = 1248081120. Its totient is φ = 107956800.

The previous prime is 386996903. The next prime is 386996957. The reversal of 386996904 is 409699683.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (386996903) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 150429 + ... + 152979.

It is an arithmetic number, because the mean of its divisors is an integer number (8667230).

Almost surely, 2^386996904 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 386996904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624040560).

386996904 is an abundant number, since it is smaller than the sum of its proper divisors (861084216).

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

386996904 is a wasteful number, since it uses less digits than its factorization.

386996904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The square root of 386996904 is about 19672.2368834863. The cubic root of 386996904 is about 728.7342198106.

The spelling of 386996904 in words is "three hundred eighty-six million, nine hundred ninety-six thousand, nine hundred four".