387042804 has 144 divisors (see below), whose sum is σ = 1061598720. Its totient is φ = 118609920.

The previous prime is 387042793. The next prime is 387042809. The reversal of 387042804 is 408240783.

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 (387042809) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3990084 + ... + 3990180.

Almost surely, 2^387042804 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 387042804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530799360).

387042804 is an abundant number, since it is smaller than the sum of its proper divisors (674555916).

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

387042804 is a wasteful number, since it uses less digits than its factorization.

387042804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 387042804 is about 19673.4034676260. The cubic root of 387042804 is about 728.7630293247.

The spelling of 387042804 in words is "three hundred eighty-seven million, forty-two thousand, eight hundred four".