23134340 has 24 divisors (see below), whose sum is σ = 49617792. Its totient is φ = 9056480.

The previous prime is 23134333. The next prime is 23134351. The reversal of 23134340 is 4343132.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 11366 + ... + 13245.

It is an arithmetic number, because the mean of its divisors is an integer number (2067408).

Almost surely, 2^23134340 is an apocalyptic number.

23134340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23134340 is an abundant number, since it is smaller than the sum of its proper divisors (26483452).

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

23134340 is a wasteful number, since it uses less digits than its factorization.

23134340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24667 (or 24665 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 23134340 is about 4809.8170443375. The cubic root of 23134340 is about 284.9393119985.

Adding to 23134340 its reverse (4343132), we get a palindrome (27477472).

The spelling of 23134340 in words is "twenty-three million, one hundred thirty-four thousand, three hundred forty".