24921049 has 4 divisors (see below), whose sum is σ = 25154064. Its totient is φ = 24688036.

The previous prime is 24921041. The next prime is 24921067. The reversal of 24921049 is 94012942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24921049 - 2³ = 24921041 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 24921049.

It is not an unprimeable number, because it can be changed into a prime (24921041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116347 + ... + 116560.

It is an arithmetic number, because the mean of its divisors is an integer number (6288516).

Almost surely, 2^24921049 is an apocalyptic number.

It is an amenable number.

24921049 is a deficient number, since it is larger than the sum of its proper divisors (233015).

24921049 is a wasteful number, since it uses less digits than its factorization.

24921049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233014.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 24921049 is about 4992.0986568777. The cubic root of 24921049 is about 292.0936437316.

The spelling of 24921049 in words is "twenty-four million, nine hundred twenty-one thousand, forty-nine".