22727444 has 6 divisors (see below), whose sum is σ = 39773034. Its totient is φ = 11363720.

The previous prime is 22727437. The next prime is 22727479. The reversal of 22727444 is 44472722.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 11303044 = 3380^2 + 3362^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22727444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2840927 + ... + 2840934.

It is an arithmetic number, because the mean of its divisors is an integer number (6628839).

Almost surely, 2^22727444 is an apocalyptic number.

It is an amenable number.

22727444 is a deficient number, since it is larger than the sum of its proper divisors (17045590).

22727444 is a wasteful number, since it uses less digits than its factorization.

22727444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681865 (or 5681863 counting only the distinct ones).

The product of its digits is 25088, while the sum is 32.

The square root of 22727444 is about 4767.3309094293. The cubic root of 22727444 is about 283.2588790141.

The spelling of 22727444 in words is "twenty-two million, seven hundred twenty-seven thousand, four hundred forty-four".