24940013 has 16 divisors (see below), whose sum is σ = 29656704. Its totient is φ = 20528640.

The previous prime is 24940007. The next prime is 24940021. The reversal of 24940013 is 31004942.

It is a cyclic number.

It is not a de Polignac number, because 24940013 - 2⁴ = 24939997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24940613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18581 + ... + 19877.

It is an arithmetic number, because the mean of its divisors is an integer number (1853544).

Almost surely, 2^24940013 is an apocalyptic number.

It is an amenable number.

24940013 is a deficient number, since it is larger than the sum of its proper divisors (4716691).

24940013 is a wasteful number, since it uses less digits than its factorization.

24940013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 24940013 is about 4993.9976972362. The cubic root of 24940013 is about 292.1677157794.

Adding to 24940013 its sum of digits (23), we get a square (24940036 = 4994²).

Adding to 24940013 its reverse (31004942), we get a palindrome (55944955).

The spelling of 24940013 in words is "twenty-four million, nine hundred forty thousand, thirteen".