24921996 has 72 divisors (see below), whose sum is σ = 67080384. Its totient is φ = 7140960.

The previous prime is 24921971. The next prime is 24921997. The reversal of 24921996 is 69912942.

It is a super-2 number, since 2×24921996² = 1242211769248032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24921997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47391 + ... + 47913.

It is an arithmetic number, because the mean of its divisors is an integer number (931672).

Almost surely, 2^24921996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24921996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33540192).

24921996 is an abundant number, since it is smaller than the sum of its proper divisors (42158388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

24921996 is a wasteful number, since it uses less digits than its factorization.

24921996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 558 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 24921996 is about 4992.1935058649. The cubic root of 24921996 is about 292.0973435381.

The spelling of 24921996 in words is "twenty-four million, nine hundred twenty-one thousand, nine hundred ninety-six".