23415042 has 48 divisors (see below), whose sum is σ = 55272672. Its totient is φ = 6592320.

The previous prime is 23415017. The next prime is 23415079. The reversal of 23415042 is 24051432.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20917 + ... + 22007.

It is an arithmetic number, because the mean of its divisors is an integer number (1151514).

Almost surely, 2^23415042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23415042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27636336).

23415042 is an abundant number, since it is smaller than the sum of its proper divisors (31857630).

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

23415042 is a wasteful number, since it uses less digits than its factorization.

23415042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 23415042 is about 4838.9091745971. The cubic root of 23415042 is about 286.0871252320.

Adding to 23415042 its reverse (24051432), we get a palindrome (47466474).

The spelling of 23415042 in words is "twenty-three million, four hundred fifteen thousand, forty-two".