22739712 has 72 divisors (see below), whose sum is σ = 62669040. Its totient is φ = 7311360.

The previous prime is 22739711. The next prime is 22739729. The reversal of 22739712 is 21793722.

It is not an unprimeable number, because it can be changed into a prime (22739711) 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, 21762 + ... + 22782.

Almost surely, 2^22739712 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 22739712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31334520).

22739712 is an abundant number, since it is smaller than the sum of its proper divisors (39929328).

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

22739712 is a wasteful number, since it uses less digits than its factorization.

22739712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1055 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 22739712 is about 4768.6174096902. The cubic root of 22739712 is about 283.3098364213.

The spelling of 22739712 in words is "twenty-two million, seven hundred thirty-nine thousand, seven hundred twelve".