390109452 has 24 divisors (see below), whose sum is σ = 910772016. Its totient is φ = 129962688.

The previous prime is 390109411. The next prime is 390109483. The reversal of 390109452 is 254901093.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15438 + ... + 31914.

It is an arithmetic number, because the mean of its divisors is an integer number (37948834).

Almost surely, 2^390109452 is an apocalyptic number.

It is an amenable number.

390109452 is an abundant number, since it is smaller than the sum of its proper divisors (520662564).

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

390109452 is a wasteful number, since it uses less digits than its factorization.

390109452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18457 (or 18455 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 390109452 is about 19751.1886224602. The cubic root of 390109452 is about 730.6826990499.

The spelling of 390109452 in words is "three hundred ninety million, one hundred nine thousand, four hundred fifty-two".