392487916 has 24 divisors (see below), whose sum is σ = 734205024. Its totient is φ = 183131520.

The previous prime is 392487913. The next prime is 392487917. The reversal of 392487916 is 619784293.

It is a self number, because there is not a number n which added to its sum of digits gives 392487916.

It is not an unprimeable number, because it can be changed into a prime (392487913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48255 + ... + 55798.

It is an arithmetic number, because the mean of its divisors is an integer number (30591876).

Almost surely, 2^392487916 is an apocalyptic number.

It is an amenable number.

392487916 is a deficient number, since it is larger than the sum of its proper divisors (341717108).

392487916 is a wasteful number, since it uses less digits than its factorization.

392487916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104121 (or 104119 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 392487916 is about 19811.3077811638. The cubic root of 392487916 is about 732.1646613158.

The spelling of 392487916 in words is "three hundred ninety-two million, four hundred eighty-seven thousand, nine hundred sixteen".