390377512 has 48 divisors (see below), whose sum is σ = 865944000. Its totient is φ = 164459232.

The previous prime is 390377509. The next prime is 390377543. The reversal of 390377512 is 215773093.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14689 + ... + 31567.

It is an arithmetic number, because the mean of its divisors is an integer number (18040500).

Almost surely, 2^390377512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390377512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432972000).

390377512 is an abundant number, since it is smaller than the sum of its proper divisors (475566488).

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

390377512 is a wasteful number, since it uses less digits than its factorization.

390377512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16958 (or 16947 counting only the distinct ones).

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 390377512 is about 19757.9733778543. The cubic root of 390377512 is about 730.8500212870.

The spelling of 390377512 in words is "three hundred ninety million, three hundred seventy-seven thousand, five hundred twelve".