24420939 has 4 divisors (see below), whose sum is σ = 32561256. Its totient is φ = 16280624.

The previous prime is 24420937. The next prime is 24420943. The reversal of 24420939 is 93902442.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 24420939 - 2¹ = 24420937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24420937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4070154 + ... + 4070159.

It is an arithmetic number, because the mean of its divisors is an integer number (8140314).

Almost surely, 2^24420939 is an apocalyptic number.

24420939 is a deficient number, since it is larger than the sum of its proper divisors (8140317).

24420939 is an equidigital number, since it uses as much as digits as its factorization.

24420939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8140316.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 24420939 is about 4941.7546478958. The cubic root of 24420939 is about 290.1265361398.

The spelling of 24420939 in words is "twenty-four million, four hundred twenty thousand, nine hundred thirty-nine".