23241540 has 48 divisors (see below), whose sum is σ = 74374272. Its totient is φ = 5312256.

The previous prime is 23241529. The next prime is 23241551. The reversal of 23241540 is 4514232.

It is an interprime number because it is at equal distance from previous prime (23241529) and next prime (23241551).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27249 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (1549464).

Almost surely, 2^23241540 is an apocalyptic number.

23241540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23241540 is an abundant number, since it is smaller than the sum of its proper divisors (51132732).

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

23241540 is a wasteful number, since it uses less digits than its factorization.

23241540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55356 (or 55354 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 23241540 is about 4820.9480395457. The cubic root of 23241540 is about 285.3787515894.

Adding to 23241540 its reverse (4514232), we get a palindrome (27755772).

The spelling of 23241540 in words is "twenty-three million, two hundred forty-one thousand, five hundred forty".