390240173671 has 12 divisors (see below), whose sum is σ = 415103169792. Its totient is φ = 366790140864.

The previous prime is 390240173657. The next prime is 390240173737. The reversal of 390240173671 is 176371042093.

It is a de Polignac number, because none of the positive numbers 2^k-390240173671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390240173651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4210050 + ... + 4301743.

It is an arithmetic number, because the mean of its divisors is an integer number (34591930816).

Almost surely, 2^390240173671 is an apocalyptic number.

390240173671 is a deficient number, since it is larger than the sum of its proper divisors (24862996121).

390240173671 is a wasteful number, since it uses less digits than its factorization.

390240173671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8511958 (or 8511939 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 390240173671 in words is "three hundred ninety billion, two hundred forty million, one hundred seventy-three thousand, six hundred seventy-one".