390766143140 has 24 divisors (see below), whose sum is σ = 840623753592. Its totient is φ = 152494104320.

The previous prime is 390766143127. The next prime is 390766143149. The reversal of 390766143140 is 41341667093.

It can be written as a sum of positive squares in 4 ways, for example, as 55284235876 + 335481907264 = 235126^2 + 579208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 390766143091 and 390766143100.

It is not an unprimeable number, because it can be changed into a prime (390766143149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238271219 + ... + 238272858.

It is an arithmetic number, because the mean of its divisors is an integer number (35025989733).

Almost surely, 2^390766143140 is an apocalyptic number.

It is an amenable number.

390766143140 is an abundant number, since it is smaller than the sum of its proper divisors (449857610452).

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

390766143140 is a wasteful number, since it uses less digits than its factorization.

390766143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476544127 (or 476544125 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The spelling of 390766143140 in words is "three hundred ninety billion, seven hundred sixty-six million, one hundred forty-three thousand, one hundred forty".