390729544 has 16 divisors (see below), whose sum is σ = 734278320. Its totient is φ = 194922000.

The previous prime is 390729541. The next prime is 390729551. The reversal of 390729544 is 445927093.

It is a self number, because there is not a number n which added to its sum of digits gives 390729544.

It is not an unprimeable number, because it can be changed into a prime (390729541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 51582 + ... + 58669.

It is an arithmetic number, because the mean of its divisors is an integer number (45892395).

Almost surely, 2^390729544 is an apocalyptic number.

It is an amenable number.

390729544 is a deficient number, since it is larger than the sum of its proper divisors (343548776).

390729544 is a wasteful number, since it uses less digits than its factorization.

390729544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110700 (or 110696 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 390729544 is about 19766.8799763645. The cubic root of 390729544 is about 731.0696422852.

The spelling of 390729544 in words is "three hundred ninety million, seven hundred twenty-nine thousand, five hundred forty-four".