23135740 has 24 divisors (see below), whose sum is σ = 48837600. Its totient is φ = 9206208.

The previous prime is 23135737. The next prime is 23135741. The reversal of 23135740 is 4753132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23135741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1074 + ... + 6886.

It is an arithmetic number, because the mean of its divisors is an integer number (2034900).

Almost surely, 2^23135740 is an apocalyptic number.

23135740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23135740 is an abundant number, since it is smaller than the sum of its proper divisors (25701860).

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

23135740 is a wasteful number, since it uses less digits than its factorization.

23135740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021 (or 6019 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 23135740 is about 4809.9625778170. The cubic root of 23135740 is about 284.9450596877.

Adding to 23135740 its reverse (4753132), we get a palindrome (27888872).

The spelling of 23135740 in words is "twenty-three million, one hundred thirty-five thousand, seven hundred forty".