23520542 has 4 divisors (see below), whose sum is σ = 35280816. Its totient is φ = 11760270.

The previous prime is 23520509. The next prime is 23520547. The reversal of 23520542 is 24502532.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5880134 + ... + 5880137.

It is an arithmetic number, because the mean of its divisors is an integer number (8820204).

Almost surely, 2^23520542 is an apocalyptic number.

23520542 is a deficient number, since it is larger than the sum of its proper divisors (11760274).

23520542 is a wasteful number, since it uses less digits than its factorization.

23520542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11760273.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 23520542 is about 4849.7981401291. The cubic root of 23520542 is about 286.5161510793.

The spelling of 23520542 in words is "twenty-three million, five hundred twenty thousand, five hundred forty-two".