239812468 has 18 divisors (see below), whose sum is σ = 488190066. Its totient is φ = 102776688.

The previous prime is 239812459. The next prime is 239812477. The reversal of 239812468 is 864218932.

It is an interprime number because it is at equal distance from previous prime (239812459) and next prime (239812477).

It can be written as a sum of positive squares in only one way, i.e., 195216784 + 44595684 = 13972^2 + 6678^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611571 + ... + 611962.

Almost surely, 2^239812468 is an apocalyptic number.

239812468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

239812468 is an abundant number, since it is smaller than the sum of its proper divisors (248377598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

239812468 is a wasteful number, since it uses less digits than its factorization.

239812468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223551 (or 1223542 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 239812468 is about 15485.8796327493. The cubic root of 239812468 is about 621.2845963673.

The spelling of 239812468 in words is "two hundred thirty-nine million, eight hundred twelve thousand, four hundred sixty-eight".