390553391442 has 64 divisors (see below), whose sum is σ = 819940195584. Its totient is φ = 123882819840.

The previous prime is 390553391441. The next prime is 390553391461. The reversal of 390553391442 is 244193355093.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 390553391391 and 390553391400.

It is not an unprimeable number, because it can be changed into a prime (390553391441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3677467 + ... + 3782177.

It is an arithmetic number, because the mean of its divisors is an integer number (12811565556).

Almost surely, 2^390553391442 is an apocalyptic number.

390553391442 is an abundant number, since it is smaller than the sum of its proper divisors (429386804142).

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

390553391442 is a wasteful number, since it uses less digits than its factorization.

390553391442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105123.

The product of its (nonzero) digits is 1749600, while the sum is 48.

The spelling of 390553391442 in words is "three hundred ninety billion, five hundred fifty-three million, three hundred ninety-one thousand, four hundred forty-two".