23557042 has 8 divisors (see below), whose sum is σ = 36197532. Its totient is φ = 11491200.

The previous prime is 23557033. The next prime is 23557043. The reversal of 23557042 is 24075532.

It can be written as a sum of positive squares in 2 ways, for example, as 22934521 + 622521 = 4789^2 + 789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23557042.

It is not an unprimeable number, because it can be changed into a prime (23557043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143559 + ... + 143722.

Almost surely, 2^23557042 is an apocalyptic number.

23557042 is a deficient number, since it is larger than the sum of its proper divisors (12640490).

23557042 is a wasteful number, since it uses less digits than its factorization.

23557042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287324.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 23557042 is about 4853.5597245733. The cubic root of 23557042 is about 286.6642830761.

The spelling of 23557042 in words is "twenty-three million, five hundred fifty-seven thousand, forty-two".