22533742 has 16 divisors (see below), whose sum is σ = 42141312. Its totient is φ = 8779320.

The previous prime is 22533733. The next prime is 22533743. The reversal of 22533742 is 24733522.

It is a self number, because there is not a number n which added to its sum of digits gives 22533742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22533743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73008 + ... + 73315.

It is an arithmetic number, because the mean of its divisors is an integer number (2633832).

Almost surely, 2^22533742 is an apocalyptic number.

22533742 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22533742 is a deficient number, since it is larger than the sum of its proper divisors (19607570).

22533742 is a wasteful number, since it uses less digits than its factorization.

22533742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146343.

The product of its digits is 10080, while the sum is 28.

The square root of 22533742 is about 4746.9718768916. The cubic root of 22533742 is about 282.4518601240.

It can be divided in two parts, 2253 and 3742, that added together give a palindrome (5995).

The spelling of 22533742 in words is "twenty-two million, five hundred thirty-three thousand, seven hundred forty-two".