24139408 has 20 divisors (see below), whose sum is σ = 47538748. Its totient is φ = 11871360.

The previous prime is 24139387. The next prime is 24139411. The reversal of 24139408 is 80493142.

It can be written as a sum of positive squares in 2 ways, for example, as 984064 + 23155344 = 992^2 + 4812^2 .

It is a super-2 number, since 2×24139408² = 1165422037180928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24139408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11391 + ... + 13342.

Almost surely, 2^24139408 is an apocalyptic number.

It is an amenable number.

24139408 is a deficient number, since it is larger than the sum of its proper divisors (23399340).

24139408 is a wasteful number, since it uses less digits than its factorization.

24139408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24802 (or 24796 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 24139408 is about 4913.1871529589. The cubic root of 24139408 is about 289.0073392851.

The spelling of 24139408 in words is "twenty-four million, one hundred thirty-nine thousand, four hundred eight".