385090902 has 128 divisors (see below), whose sum is σ = 1057536000. Its totient is φ = 103469184.

The previous prime is 385090889. The next prime is 385090933. The reversal of 385090902 is 209090583.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314263 + ... + 315485.

It is an arithmetic number, because the mean of its divisors is an integer number (8262000).

Almost surely, 2^385090902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385090902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528768000).

385090902 is an abundant number, since it is smaller than the sum of its proper divisors (672445098).

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

385090902 is a wasteful number, since it uses less digits than its factorization.

385090902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1252 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 385090902 is about 19623.7331310839. The cubic root of 385090902 is about 727.5358851467.

The spelling of 385090902 in words is "three hundred eighty-five million, ninety thousand, nine hundred two".