23540049 has 24 divisors (see below), whose sum is σ = 37477440. Its totient is φ = 14146272.

The previous prime is 23540039. The next prime is 23540059. The reversal of 23540049 is 94004532.

It is an interprime number because it is at equal distance from previous prime (23540039) and next prime (23540059).

It is not a de Polignac number, because 23540049 - 2¹⁹ = 23015761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23540009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2692 + ... + 7370.

It is an arithmetic number, because the mean of its divisors is an integer number (1561560).

Almost surely, 2^23540049 is an apocalyptic number.

It is an amenable number.

23540049 is a deficient number, since it is larger than the sum of its proper divisors (13937391).

23540049 is a wasteful number, since it uses less digits than its factorization.

23540049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741 (or 4738 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 23540049 is about 4851.8088379490. The cubic root of 23540049 is about 286.5953375503.

The spelling of 23540049 in words is "twenty-three million, five hundred forty thousand, forty-nine".