22710042 has 24 divisors (see below), whose sum is σ = 50793600. Its totient is φ = 7325640.

The previous prime is 22710031. The next prime is 22710049. The reversal of 22710042 is 24001722.

22710042 = 404² + 405² + ... + 511².

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 = 22709997 and 22710024.

It is not an unprimeable number, because it can be changed into a prime (22710049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19792 + ... + 20907.

It is an arithmetic number, because the mean of its divisors is an integer number (2116400).

Almost surely, 2^22710042 is an apocalyptic number.

22710042 is an abundant number, since it is smaller than the sum of its proper divisors (28083558).

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

22710042 is a wasteful number, since it uses less digits than its factorization.

22710042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40738 (or 40735 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22710042 is about 4765.5054296475. The cubic root of 22710042 is about 283.1865651244.

Adding to 22710042 its reverse (24001722), we get a palindrome (46711764).

The spelling of 22710042 in words is "twenty-two million, seven hundred ten thousand, forty-two".