390172367 has 16 divisors (see below), whose sum is σ = 426259680. Its totient is φ = 354989952.

The previous prime is 390172361. The next prime is 390172399. The reversal of 390172367 is 763271093.

It is a cyclic number.

It is not a de Polignac number, because 390172367 - 2¹⁰ = 390171343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390172367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390172361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321053 + ... + 322265.

It is an arithmetic number, because the mean of its divisors is an integer number (26641230).

Almost surely, 2^390172367 is an apocalyptic number.

390172367 is a deficient number, since it is larger than the sum of its proper divisors (36087313).

390172367 is a wasteful number, since it uses less digits than its factorization.

390172367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 390172367 is about 19752.7812472067. The cubic root of 390172367 is about 730.7219772838.

The spelling of 390172367 in words is "three hundred ninety million, one hundred seventy-two thousand, three hundred sixty-seven".