22044890 has 16 divisors (see below), whose sum is σ = 45349632. Its totient is φ = 7558224.

The previous prime is 22044887. The next prime is 22044907. The reversal of 22044890 is 9844022.

It is a super-2 number, since 2×22044890² = 971954350224200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157394 + ... + 157533.

It is an arithmetic number, because the mean of its divisors is an integer number (2834352).

Almost surely, 2^22044890 is an apocalyptic number.

22044890 is an abundant number, since it is smaller than the sum of its proper divisors (23304742).

22044890 is a wasteful number, since it uses less digits than its factorization.

22044890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314941.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22044890 is about 4695.1986113476. The cubic root of 22044890 is about 280.3943847179.

The spelling of 22044890 in words is "twenty-two million, forty-four thousand, eight hundred ninety".