390441332 has 12 divisors (see below), whose sum is σ = 684831840. Its totient is φ = 194775096.

The previous prime is 390441313. The next prime is 390441347. The reversal of 390441332 is 233144093.

It is a junction number, because it is equal to n+sod(n) for n = 390441295 and 390441304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109418 + ... + 112929.

It is an arithmetic number, because the mean of its divisors is an integer number (57069320).

Almost surely, 2^390441332 is an apocalyptic number.

It is an amenable number.

390441332 is a deficient number, since it is larger than the sum of its proper divisors (294390508).

390441332 is a wasteful number, since it uses less digits than its factorization.

390441332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222790 (or 222788 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 390441332 is about 19759.5883560362. The cubic root of 390441332 is about 730.8898462474.

The spelling of 390441332 in words is "three hundred ninety million, four hundred forty-one thousand, three hundred thirty-two".