22739244 has 48 divisors (see below), whose sum is σ = 59759616. Its totient is φ = 6667200.

The previous prime is 22739231. The next prime is 22739263. The reversal of 22739244 is 44293722.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 1314 + ... + 6870.

It is an arithmetic number, because the mean of its divisors is an integer number (1244992).

Almost surely, 2^22739244 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 22739244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29879808).

22739244 is an abundant number, since it is smaller than the sum of its proper divisors (37020372).

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

22739244 is a wasteful number, since it uses less digits than its factorization.

22739244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5604 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 22739244 is about 4768.5683386107. The cubic root of 22739244 is about 283.3078928330.

The spelling of 22739244 in words is "twenty-two million, seven hundred thirty-nine thousand, two hundred forty-four".