390040056393 has 128 divisors (see below), whose sum is σ = 642756280320. Its totient is φ = 207907983360.

The previous prime is 390040056379. The next prime is 390040056401. The reversal of 390040056393 is 393650040093.

It is not a de Polignac number, because 390040056393 - 2¹⁴ = 390040040009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390040056313) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 39929596 + ... + 39939362.

It is an arithmetic number, because the mean of its divisors is an integer number (5021533440).

Almost surely, 2^390040056393 is an apocalyptic number.

It is an amenable number.

390040056393 is a deficient number, since it is larger than the sum of its proper divisors (252716223927).

390040056393 is a wasteful number, since it uses less digits than its factorization.

390040056393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9927.

The product of its (nonzero) digits is 262440, while the sum is 42.

The spelling of 390040056393 in words is "three hundred ninety billion, forty million, fifty-six thousand, three hundred ninety-three".