391344484 has 24 divisors (see below), whose sum is σ = 691826688. Its totient is φ = 193690560.

The previous prime is 391344469. The next prime is 391344487. The reversal of 391344484 is 484443193.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (391344487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169224 + ... + 171520.

It is an arithmetic number, because the mean of its divisors is an integer number (28826112).

Almost surely, 2^391344484 is an apocalyptic number.

It is an amenable number.

391344484 is a deficient number, since it is larger than the sum of its proper divisors (300482204).

391344484 is a wasteful number, since it uses less digits than its factorization.

391344484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2715 (or 2713 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 391344484 is about 19782.4286678861. The cubic root of 391344484 is about 731.4529665340.

The spelling of 391344484 in words is "three hundred ninety-one million, three hundred forty-four thousand, four hundred eighty-four".