24984981 has 24 divisors (see below), whose sum is σ = 43417920. Its totient is φ = 13525056.

The previous prime is 24984961. The next prime is 24984983. The reversal of 24984981 is 18948942.

It is not a de Polignac number, because 24984981 - 2¹¹ = 24982933 is a prime.

It is a super-2 number, since 2×24984981² = 1248498551140722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24984983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9240 + ... + 11633.

It is an arithmetic number, because the mean of its divisors is an integer number (1809080).

Almost surely, 2^24984981 is an apocalyptic number.

24984981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

24984981 is a deficient number, since it is larger than the sum of its proper divisors (18432939).

24984981 is a wasteful number, since it uses less digits than its factorization.

24984981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20905 (or 20902 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 24984981 is about 4998.4978743619. The cubic root of 24984981 is about 292.3432076618.

The spelling of 24984981 in words is "twenty-four million, nine hundred eighty-four thousand, nine hundred eighty-one".