239874394 has 16 divisors (see below), whose sum is σ = 364244040. Its totient is φ = 118465600.

The previous prime is 239874391. The next prime is 239874407. The reversal of 239874394 is 493478932.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 239847169 + 27225 = 15487^2 + 165^2 .

It is not an unprimeable number, because it can be changed into a prime (239874391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101652 + ... + 103984.

Almost surely, 2^239874394 is an apocalyptic number.

239874394 is a deficient number, since it is larger than the sum of its proper divisors (124369646).

239874394 is a wasteful number, since it uses less digits than its factorization.

239874394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945.

The product of its digits is 1306368, while the sum is 49.

The square root of 239874394 is about 15487.8789380599. The cubic root of 239874394 is about 621.3380692039.

The spelling of 239874394 in words is "two hundred thirty-nine million, eight hundred seventy-four thousand, three hundred ninety-four".