390826284 has 12 divisors (see below), whose sum is σ = 911928024. Its totient is φ = 130275424.

The previous prime is 390826237. The next prime is 390826297. The reversal of 390826284 is 482628093.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16284417 + ... + 16284440.

It is an arithmetic number, because the mean of its divisors is an integer number (75994002).

Almost surely, 2^390826284 is an apocalyptic number.

It is an amenable number.

390826284 is an abundant number, since it is smaller than the sum of its proper divisors (521101740).

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

390826284 is a wasteful number, since it uses less digits than its factorization.

390826284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32568864 (or 32568862 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 390826284 is about 19769.3268474169. The cubic root of 390826284 is about 731.1299720302.

The spelling of 390826284 in words is "three hundred ninety million, eight hundred twenty-six thousand, two hundred eighty-four".