23340042 has 32 divisors (see below), whose sum is σ = 56583360. Its totient is φ = 7072560.

The previous prime is 23340019. The next prime is 23340047. The reversal of 23340042 is 24004332.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23339997 and 23340024.

It is not an unprimeable number, because it can be changed into a prime (23340047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19053 + ... + 20240.

It is an arithmetic number, because the mean of its divisors is an integer number (1768230).

Almost surely, 2^23340042 is an apocalyptic number.

23340042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23340042 is an abundant number, since it is smaller than the sum of its proper divisors (33243318).

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

23340042 is a wasteful number, since it uses less digits than its factorization.

23340042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39315 (or 39309 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23340042 is about 4831.1532784626. The cubic root of 23340042 is about 285.7813462351.

Adding to 23340042 its reverse (24004332), we get a palindrome (47344374).

The spelling of 23340042 in words is "twenty-three million, three hundred forty thousand, forty-two".