22738444 has 24 divisors (see below), whose sum is σ = 41690880. Its totient is φ = 10830864.

The previous prime is 22738439. The next prime is 22738481. The reversal of 22738444 is 44483722.

It is a super-2 number, since 2×22738444² = 1034073671082272, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40107 + ... + 40669.

It is an arithmetic number, because the mean of its divisors is an integer number (1737120).

Almost surely, 2^22738444 is an apocalyptic number.

It is an amenable number.

22738444 is a deficient number, since it is larger than the sum of its proper divisors (18952436).

22738444 is a wasteful number, since it uses less digits than its factorization.

22738444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 22738444 is about 4768.4844552541. The cubic root of 22738444 is about 283.3045703981.

The spelling of 22738444 in words is "twenty-two million, seven hundred thirty-eight thousand, four hundred forty-four".