386621516 has 12 divisors (see below), whose sum is σ = 678765360. Its totient is φ = 192688560.

The previous prime is 386621503. The next prime is 386621527. The reversal of 386621516 is 615126683.

It is a self number, because there is not a number n which added to its sum of digits gives 386621516.

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, 154151 + ... + 156638.

It is an arithmetic number, because the mean of its divisors is an integer number (56563780).

Almost surely, 2^386621516 is an apocalyptic number.

It is an amenable number.

386621516 is a deficient number, since it is larger than the sum of its proper divisors (292143844).

386621516 is a wasteful number, since it uses less digits than its factorization.

386621516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311104 (or 311102 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 386621516 is about 19662.6935082658. The cubic root of 386621516 is about 728.4985188899.

The spelling of 386621516 in words is "three hundred eighty-six million, six hundred twenty-one thousand, five hundred sixteen".