24990739 has 4 divisors (see below), whose sum is σ = 25181640. Its totient is φ = 24799840.

The previous prime is 24990737. The next prime is 24990751. The reversal of 24990739 is 93709942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93709942 = 2 ⋅46854971.

It is a cyclic number.

It is not a de Polignac number, because 24990739 - 2¹ = 24990737 is a prime.

It is a super-2 number, since 2×24990739² = 1249074071532242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24990695 and 24990704.

It is not an unprimeable number, because it can be changed into a prime (24990737) 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, 95254 + ... + 95515.

It is an arithmetic number, because the mean of its divisors is an integer number (6295410).

Almost surely, 2^24990739 is an apocalyptic number.

24990739 is a deficient number, since it is larger than the sum of its proper divisors (190901).

24990739 is a wasteful number, since it uses less digits than its factorization.

24990739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190900.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 24990739 is about 4999.0738142180. The cubic root of 24990739 is about 292.3656635910.

The spelling of 24990739 in words is "twenty-four million, nine hundred ninety thousand, seven hundred thirty-nine".