390931957434 has 32 divisors (see below), whose sum is σ = 800868946176. Its totient is φ = 127159603200.

The previous prime is 390931957417. The next prime is 390931957447. The reversal of 390931957434 is 434759139093.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1961767 + ... + 2151834.

It is an arithmetic number, because the mean of its divisors is an integer number (25027154568).

Almost surely, 2^390931957434 is an apocalyptic number.

390931957434 is an abundant number, since it is smaller than the sum of its proper divisors (409936988742).

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

390931957434 is a wasteful number, since it uses less digits than its factorization.

390931957434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113990.

The product of its (nonzero) digits is 11022480, while the sum is 57.

The spelling of 390931957434 in words is "three hundred ninety billion, nine hundred thirty-one million, nine hundred fifty-seven thousand, four hundred thirty-four".