24991012 has 12 divisors (see below), whose sum is σ = 43874460. Its totient is φ = 12455456.

The previous prime is 24991009. The next prime is 24991019. The reversal of 24991012 is 21019942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6120676 + 18870336 = 2474^2 + 4344^2 .

It is not an unprimeable number, because it can be changed into a prime (24991019) 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 3 ways as a sum of consecutive naturals, for example, 8587 + ... + 11122.

It is an arithmetic number, because the mean of its divisors is an integer number (3656205).

Almost surely, 2^24991012 is an apocalyptic number.

It is an amenable number.

24991012 is a deficient number, since it is larger than the sum of its proper divisors (18883448).

24991012 is a wasteful number, since it uses less digits than its factorization.

24991012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20030 (or 20028 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 24991012 is about 4999.1011192013. The cubic root of 24991012 is about 292.3667281925.

The spelling of 24991012 in words is "twenty-four million, nine hundred ninety-one thousand, twelve".