22938444 has 48 divisors (see below), whose sum is σ = 60748800. Its totient is φ = 7481808.

The previous prime is 22938439. The next prime is 22938469. The reversal of 22938444 is 44483922.

22938444 = T₃₉₇ + T₃₉₈ + ... + T₅₈₄.

It is a super-2 number, since 2×22938444² = 1052344426282272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 22938399 and 22938408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2817 + ... + 7335.

It is an arithmetic number, because the mean of its divisors is an integer number (1265600).

Almost surely, 2^22938444 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 22938444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30374400).

22938444 is an abundant number, since it is smaller than the sum of its proper divisors (37810356).

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

22938444 is a wasteful number, since it uses less digits than its factorization.

22938444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579 (or 4571 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 22938444 is about 4789.4095669508. The cubic root of 22938444 is about 284.1327654060.

The spelling of 22938444 in words is "twenty-two million, nine hundred thirty-eight thousand, four hundred forty-four".