390904612900 has 18 divisors (see below), whose sum is σ = 848263010210. Its totient is φ = 156361845120.

The previous prime is 390904612897. The next prime is 390904612907. The reversal of 390904612900 is 9216409093.

It can be written as a sum of positive squares in 3 ways, for example, as 93600507364 + 297304105536 = 305942^2 + 545256^2 .

It is not an unprimeable number, because it can be changed into a prime (390904612907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1954522965 + ... + 1954523164.

Almost surely, 2^390904612900 is an apocalyptic number.

It is an amenable number.

390904612900 is an abundant number, since it is smaller than the sum of its proper divisors (457358397310).

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

390904612900 is a wasteful number, since it uses less digits than its factorization.

390904612900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909046143 (or 3909046136 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 390904612900 in words is "three hundred ninety billion, nine hundred four million, six hundred twelve thousand, nine hundred".