390999096 has 128 divisors (see below), whose sum is σ = 1115150400. Its totient is φ = 126904320.

The previous prime is 390999067. The next prime is 390999121. The reversal of 390999096 is 690999093.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2160126 + ... + 2160306.

Almost surely, 2^390999096 is an apocalyptic number.

390999096 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390999096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557575200).

390999096 is an abundant number, since it is smaller than the sum of its proper divisors (724151304).

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

390999096 is a wasteful number, since it uses less digits than its factorization.

390999096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 396 counting only the distinct ones).

The product of its (nonzero) digits is 1062882, while the sum is 54.

The square root of 390999096 is about 19773.6970746494. The cubic root of 390999096 is about 731.2377176109.

The spelling of 390999096 in words is "three hundred ninety million, nine hundred ninety-nine thousand, ninety-six".