239992645 has 8 divisors (see below), whose sum is σ = 288931104. Its totient is φ = 191367504.

The previous prime is 239992637. The next prime is 239992651. The reversal of 239992645 is 546299932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 239992645 - 2³ = 239992637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76639 + ... + 79708.

It is an arithmetic number, because the mean of its divisors is an integer number (36116388).

Almost surely, 2^239992645 is an apocalyptic number.

It is an amenable number.

239992645 is a deficient number, since it is larger than the sum of its proper divisors (48938459).

239992645 is a wasteful number, since it uses less digits than its factorization.

239992645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156659.

The product of its digits is 1049760, while the sum is 49.

The square root of 239992645 is about 15491.6960014067. The cubic root of 239992645 is about 621.4401528773.

The spelling of 239992645 in words is "two hundred thirty-nine million, nine hundred ninety-two thousand, six hundred forty-five".