23342540 has 24 divisors (see below), whose sum is σ = 52790640. Its totient is φ = 8618688.

The previous prime is 23342533. The next prime is 23342549. The reversal of 23342540 is 4524332.

It is not an unprimeable number, because it can be changed into a prime (23342549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44630 + ... + 45149.

It is an arithmetic number, because the mean of its divisors is an integer number (2199610).

Almost surely, 2^23342540 is an apocalyptic number.

23342540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23342540 is an abundant number, since it is smaller than the sum of its proper divisors (29448100).

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

23342540 is a wasteful number, since it uses less digits than its factorization.

23342540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89801 (or 89799 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23342540 is about 4831.4118019477. The cubic root of 23342540 is about 285.7915412515.

Adding to 23342540 its reverse (4524332), we get a palindrome (27866872).

The spelling of 23342540 in words is "twenty-three million, three hundred forty-two thousand, five hundred forty".