390648340084 has 6 divisors (see below), whose sum is σ = 683634595154. Its totient is φ = 195324170040.

The previous prime is 390648339973. The next prime is 390648340111. The reversal of 390648340084 is 480043846093.

It can be written as a sum of positive squares in only one way, i.e., 316676307600 + 73972032484 = 562740^2 + 271978^2 .

It is a super-2 number, since 2×390648340084² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48831042507 + ... + 48831042514.

Almost surely, 2^390648340084 is an apocalyptic number.

It is an amenable number.

390648340084 is a deficient number, since it is larger than the sum of its proper divisors (292986255070).

390648340084 is a wasteful number, since it uses less digits than its factorization.

390648340084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97662085025 (or 97662085023 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 390648340084 in words is "three hundred ninety billion, six hundred forty-eight million, three hundred forty thousand, eighty-four".