23530842 has 24 divisors (see below), whose sum is σ = 51512916. Its totient is φ = 7762176.

The previous prime is 23530813. The next prime is 23530849. The reversal of 23530842 is 24803532.

It can be written as a sum of positive squares in 2 ways, for example, as 23415921 + 114921 = 4839^2 + 339^2 .

It is not an unprimeable number, because it can be changed into a prime (23530849) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4993 + ... + 8484.

Almost surely, 2^23530842 is an apocalyptic number.

23530842 is an abundant number, since it is smaller than the sum of its proper divisors (27982074).

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

23530842 is a wasteful number, since it uses less digits than its factorization.

23530842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13582 (or 13579 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 23530842 is about 4850.8599237661. The cubic root of 23530842 is about 286.5579682234.

The spelling of 23530842 in words is "twenty-three million, five hundred thirty thousand, eight hundred forty-two".