23320749 has 16 divisors (see below), whose sum is σ = 31977792. Its totient is φ = 15109248.

The previous prime is 23320709. The next prime is 23320777. The reversal of 23320749 is 94702332.

It is not a de Polignac number, because 23320749 - 2⁹ = 23320237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320709) 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, 37489 + ... + 38105.

It is an arithmetic number, because the mean of its divisors is an integer number (1998612).

Almost surely, 2^23320749 is an apocalyptic number.

It is an amenable number.

23320749 is a deficient number, since it is larger than the sum of its proper divisors (8657043).

23320749 is a wasteful number, since it uses less digits than its factorization.

23320749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 23320749 is about 4829.1561374634. The cubic root of 23320749 is about 285.7025817468.

The spelling of 23320749 in words is "twenty-three million, three hundred twenty thousand, seven hundred forty-nine".