386707904 has 56 divisors (see below), whose sum is σ = 840077568. Its totient is φ = 175159040.

The previous prime is 386707903. The next prime is 386707907. The reversal of 386707904 is 409707683.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386707903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243497 + ... + 245079.

Almost surely, 2^386707904 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 386707904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420038784).

386707904 is an abundant number, since it is smaller than the sum of its proper divisors (453369664).

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

386707904 is a wasteful number, since it uses less digits than its factorization.

386707904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 386707904 is about 19664.8901344503. The cubic root of 386707904 is about 728.5527742281.

The spelling of 386707904 in words is "three hundred eighty-six million, seven hundred seven thousand, nine hundred four".