23322140 has 12 divisors (see below), whose sum is σ = 48976536. Its totient is φ = 9328848.

The previous prime is 23322133. The next prime is 23322149. The reversal of 23322140 is 4122332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23322149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583034 + ... + 583073.

It is an arithmetic number, because the mean of its divisors is an integer number (4081378).

Almost surely, 2^23322140 is an apocalyptic number.

23322140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23322140 is an abundant number, since it is smaller than the sum of its proper divisors (25654396).

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

23322140 is a wasteful number, since it uses less digits than its factorization.

23322140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166116 (or 1166114 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23322140 is about 4829.3001563374. The cubic root of 23322140 is about 285.7082620159.

Adding to 23322140 its reverse (4122332), we get a palindrome (27444472).

The spelling of 23322140 in words is "twenty-three million, three hundred twenty-two thousand, one hundred forty".