22874436 has 72 divisors (see below), whose sum is σ = 64000664. Its totient is φ = 6842880.

The previous prime is 22874419. The next prime is 22874437. The reversal of 22874436 is 63447822.

It can be written as a sum of positive squares in 4 ways, for example, as 9036036 + 13838400 = 3006^2 + 3720^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22874436.

It is not an unprimeable number, because it can be changed into a prime (22874437) 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, 16656 + ... + 17976.

Almost surely, 2^22874436 is an apocalyptic number.

22874436 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22874436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32000332).

22874436 is an abundant number, since it is smaller than the sum of its proper divisors (41126228).

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

22874436 is a wasteful number, since it uses less digits than its factorization.

22874436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381 (or 1376 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 22874436 is about 4782.7226555593. The cubic root of 22874436 is about 283.8682355103.

The spelling of 22874436 in words is "twenty-two million, eight hundred seventy-four thousand, four hundred thirty-six".