390694452 has 24 divisors (see below), whose sum is σ = 912194976. Its totient is φ = 130149408.

The previous prime is 390694417. The next prime is 390694463. The reversal of 390694452 is 254496093.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11403 + ... + 30189.

It is an arithmetic number, because the mean of its divisors is an integer number (38008124).

Almost surely, 2^390694452 is an apocalyptic number.

It is an amenable number.

390694452 is an abundant number, since it is smaller than the sum of its proper divisors (521500524).

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

390694452 is a wasteful number, since it uses less digits than its factorization.

390694452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20527 (or 20525 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 390694452 is about 19765.9923100258. The cubic root of 390694452 is about 731.0477554803.

The spelling of 390694452 in words is "three hundred ninety million, six hundred ninety-four thousand, four hundred fifty-two".