24972981 has 16 divisors (see below), whose sum is σ = 37171200. Its totient is φ = 14782320.

The previous prime is 24972979. The next prime is 24973019. The reversal of 24972981 is 18927942.

It is not a de Polignac number, because 24972981 - 2¹ = 24972979 is a prime.

It is a super-2 number, since 2×24972981² = 1247299560052722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24972971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7381 + ... + 10218.

It is an arithmetic number, because the mean of its divisors is an integer number (2323200).

Almost surely, 2^24972981 is an apocalyptic number.

It is an amenable number.

24972981 is a deficient number, since it is larger than the sum of its proper divisors (12198219).

24972981 is a wasteful number, since it uses less digits than its factorization.

24972981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17656.

The product of its digits is 72576, while the sum is 42.

The square root of 24972981 is about 4997.2973695789. The cubic root of 24972981 is about 292.2963971362.

The spelling of 24972981 in words is "twenty-four million, nine hundred seventy-two thousand, nine hundred eighty-one".