22074732 has 72 divisors (see below), whose sum is σ = 59841600. Its totient is φ = 6840288.

The previous prime is 22074719. The next prime is 22074737. The reversal of 22074732 is 23747022.

It is a junction number, because it is equal to n+sod(n) for n = 22074696 and 22074705.

It is not an unprimeable number, because it can be changed into a prime (22074737) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40083 + ... + 40629.

Almost surely, 2^22074732 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22074732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29920800).

22074732 is an abundant number, since it is smaller than the sum of its proper divisors (37766868).

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

22074732 is a wasteful number, since it uses less digits than its factorization.

22074732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 22074732 is about 4698.3754639237. The cubic root of 22074732 is about 280.5208502522.

The spelling of 22074732 in words is "twenty-two million, seventy-four thousand, seven hundred thirty-two".