23008540 has 24 divisors (see below), whose sum is σ = 48469680. Its totient is φ = 9174528.

The previous prime is 23008409. The next prime is 23008549. The reversal of 23008540 is 4580032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23008549) 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 7 ways as a sum of consecutive naturals, for example, 5431 + ... + 8689.

It is an arithmetic number, because the mean of its divisors is an integer number (2019570).

Almost surely, 2^23008540 is an apocalyptic number.

23008540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23008540 is an abundant number, since it is smaller than the sum of its proper divisors (25461140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23008540 is a wasteful number, since it uses less digits than its factorization.

23008540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621 (or 3619 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 23008540 is about 4796.7217972278. The cubic root of 23008540 is about 284.4218916355.

Adding to 23008540 its reverse (4580032), we get a palindrome (27588572).

The spelling of 23008540 in words is "twenty-three million, eight thousand, five hundred forty".