386402904 has 48 divisors (see below), whose sum is σ = 1059770400. Its totient is φ = 127168704.

The previous prime is 386402899. The next prime is 386402909. The reversal of 386402904 is 409204683.

It is a happy number.

386402904 is a `hidden beast` number, since 3 + 8 + 640 + 2 + 9 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (386402899) and next prime (386402909).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386402909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28279 + ... + 39654.

It is an arithmetic number, because the mean of its divisors is an integer number (22078550).

Almost surely, 2^386402904 is an apocalyptic number.

It is an amenable number.

386402904 is an abundant number, since it is smaller than the sum of its proper divisors (673367496).

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

386402904 is a wasteful number, since it uses less digits than its factorization.

386402904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68024 (or 68017 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 386402904 is about 19657.1336669414. The cubic root of 386402904 is about 728.3611851426.

The spelling of 386402904 in words is "three hundred eighty-six million, four hundred two thousand, nine hundred four".