424665238 has 48 divisors (see below), whose sum is σ = 711037440. Its totient is φ = 189815472.

The previous prime is 424665233. The next prime is 424665239. The reversal of 424665238 is 832566424.

It is a self number, because there is not a number n which added to its sum of digits gives 424665238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424665233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1776723 + ... + 1776961.

It is an arithmetic number, because the mean of its divisors is an integer number (14813280).

Almost surely, 2^424665238 is an apocalyptic number.

424665238 is a deficient number, since it is larger than the sum of its proper divisors (286372202).

424665238 is a wasteful number, since it uses less digits than its factorization.

424665238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 390 counting only the distinct ones).

The product of its digits is 276480, while the sum is 40.

The square root of 424665238 is about 20607.4073575499. The cubic root of 424665238 is about 751.6498424025.

The spelling of 424665238 in words is "four hundred twenty-four million, six hundred sixty-five thousand, two hundred thirty-eight".