24981939 has 20 divisors (see below), whose sum is σ = 38526400. Its totient is φ = 16115760.

The previous prime is 24981937. The next prime is 24981947. The reversal of 24981939 is 93918942.

It is not a de Polignac number, because 24981939 - 2¹ = 24981937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24981894 and 24981903.

It is not an unprimeable number, because it can be changed into a prime (24981937) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2464 + ... + 7485.

It is an arithmetic number, because the mean of its divisors is an integer number (1926320).

Almost surely, 2^24981939 is an apocalyptic number.

24981939 is a deficient number, since it is larger than the sum of its proper divisors (13544461).

24981939 is an equidigital number, since it uses as much as digits as its factorization.

24981939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992 (or 9983 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 24981939 is about 4998.1935736824. The cubic root of 24981939 is about 292.3313426120.

The spelling of 24981939 in words is "twenty-four million, nine hundred eighty-one thousand, nine hundred thirty-nine".