23413140 has 36 divisors (see below), whose sum is σ = 71020404. Its totient is φ = 6243456.

The previous prime is 23413139. The next prime is 23413171. The reversal of 23413140 is 4131432.

It can be written as a sum of positive squares in 2 ways, for example, as 7683984 + 15729156 = 2772^2 + 3966^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64857 + ... + 65216.

It is an arithmetic number, because the mean of its divisors is an integer number (1972789).

Almost surely, 2^23413140 is an apocalyptic number.

23413140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23413140 is an abundant number, since it is smaller than the sum of its proper divisors (47607264).

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

23413140 is a wasteful number, since it uses less digits than its factorization.

23413140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130088 (or 130083 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 23413140 is about 4838.7126387088. The cubic root of 23413140 is about 286.0793787522.

Adding to 23413140 its reverse (4131432), we get a palindrome (27544572).

The spelling of 23413140 in words is "twenty-three million, four hundred thirteen thousand, one hundred forty".