24720964 has 6 divisors (see below), whose sum is σ = 43261694. Its totient is φ = 12360480.

The previous prime is 24720961. The next prime is 24720967. The reversal of 24720964 is 46902742.

It is an interprime number because it is at equal distance from previous prime (24720961) and next prime (24720967).

It can be written as a sum of positive squares in only one way, i.e., 18922500 + 5798464 = 4350^2 + 2408^2 .

It is a super-2 number, since 2×24720964² = 1222252122178592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (24720961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3090117 + ... + 3090124.

Almost surely, 2^24720964 is an apocalyptic number.

It is an amenable number.

24720964 is a deficient number, since it is larger than the sum of its proper divisors (18540730).

24720964 is a wasteful number, since it uses less digits than its factorization.

24720964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180245 (or 6180243 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 24720964 is about 4972.0181013347. The cubic root of 24720964 is about 291.3098261673.

The spelling of 24720964 in words is "twenty-four million, seven hundred twenty thousand, nine hundred sixty-four".