22945236 has 48 divisors (see below), whose sum is σ = 56804160. Its totient is φ = 7188480.

The previous prime is 22945201. The next prime is 22945249. The reversal of 22945236 is 63254922.

It is a junction number, because it is equal to n+sod(n) for n = 22945197 and 22945206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35476 + ... + 36116.

It is an arithmetic number, because the mean of its divisors is an integer number (1183420).

Almost surely, 2^22945236 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 22945236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28402080).

22945236 is an abundant number, since it is smaller than the sum of its proper divisors (33858924).

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

22945236 is a wasteful number, since it uses less digits than its factorization.

22945236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 22945236 is about 4790.1185789080. The cubic root of 22945236 is about 284.1608062400.

The spelling of 22945236 in words is "twenty-two million, nine hundred forty-five thousand, two hundred thirty-six".