23090140 has 24 divisors (see below), whose sum is σ = 49618800. Its totient is φ = 9020928.

The previous prime is 23090087. The next prime is 23090159. The reversal of 23090140 is 4109032.

It is a congruent number.

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, 12565 + ... + 14284.

It is an arithmetic number, because the mean of its divisors is an integer number (2067450).

Almost surely, 2^23090140 is an apocalyptic number.

23090140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23090140 is an abundant number, since it is smaller than the sum of its proper divisors (26528660).

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

23090140 is a wasteful number, since it uses less digits than its factorization.

23090140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26901 (or 26899 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 23090140 is about 4805.2200782066. The cubic root of 23090140 is about 284.7577298868.

Adding to 23090140 its reverse (4109032), we get a palindrome (27199172).

The spelling of 23090140 in words is "twenty-three million, ninety thousand, one hundred forty".