23252140 has 24 divisors (see below), whose sum is σ = 49381920. Its totient is φ = 9195648.

The previous prime is 23252111. The next prime is 23252153. The reversal of 23252140 is 4125232.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4752 + ... + 8311.

It is an arithmetic number, because the mean of its divisors is an integer number (2057580).

Almost surely, 2^23252140 is an apocalyptic number.

23252140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23252140 is an abundant number, since it is smaller than the sum of its proper divisors (26129780).

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

23252140 is a wasteful number, since it uses less digits than its factorization.

23252140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13161 (or 13159 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 23252140 is about 4822.0472830531. The cubic root of 23252140 is about 285.4221301693.

Adding to 23252140 its reverse (4125232), we get a palindrome (27377372).

It can be divided in two parts, 2325 and 2140, that added together give a triangular number (4465 = T₉₄).

The spelling of 23252140 in words is "twenty-three million, two hundred fifty-two thousand, one hundred forty".