390977322 has 32 divisors (see below), whose sum is σ = 863955072. Its totient is φ = 117325824.

The previous prime is 390977273. The next prime is 390977329. The reversal of 390977322 is 223779093.

It is not an unprimeable number, because it can be changed into a prime (390977329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80983 + ... + 85674.

It is an arithmetic number, because the mean of its divisors is an integer number (26998596).

Almost surely, 2^390977322 is an apocalyptic number.

390977322 is an abundant number, since it is smaller than the sum of its proper divisors (472977750).

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

390977322 is a wasteful number, since it uses less digits than its factorization.

390977322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166702.

The product of its (nonzero) digits is 142884, while the sum is 42.

The square root of 390977322 is about 19773.1464870920. The cubic root of 390977322 is about 731.2241436106.

The spelling of 390977322 in words is "three hundred ninety million, nine hundred seventy-seven thousand, three hundred twenty-two".