386440288940 has 12 divisors (see below), whose sum is σ = 811524606816. Its totient is φ = 154576115568.

The previous prime is 386440288919. The next prime is 386440288987. The reversal of 386440288940 is 49882044683.

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, 9661007204 + ... + 9661007243.

It is an arithmetic number, because the mean of its divisors is an integer number (67627050568).

Almost surely, 2^386440288940 is an apocalyptic number.

It is an amenable number.

386440288940 is an abundant number, since it is smaller than the sum of its proper divisors (425084317876).

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

386440288940 is a wasteful number, since it uses less digits than its factorization.

386440288940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19322014456 (or 19322014454 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 386440288940 in words is "three hundred eighty-six billion, four hundred forty million, two hundred eighty-eight thousand, nine hundred forty".