23545740 has 48 divisors (see below), whose sum is σ = 68060160. Its totient is φ = 6075840.

The previous prime is 23545723. The next prime is 23545757. The reversal of 23545740 is 4754532.

It is an interprime number because it is at equal distance from previous prime (23545723) and next prime (23545757).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23545698 and 23545707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4470 + ... + 8189.

It is an arithmetic number, because the mean of its divisors is an integer number (1417920).

Almost surely, 2^23545740 is an apocalyptic number.

23545740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23545740 is an abundant number, since it is smaller than the sum of its proper divisors (44514420).

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

23545740 is a wasteful number, since it uses less digits than its factorization.

23545740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12702 (or 12700 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 23545740 is about 4852.3952848052. The cubic root of 23545740 is about 286.6184312809.

The spelling of 23545740 in words is "twenty-three million, five hundred forty-five thousand, seven hundred forty".