2022444 has 18 divisors (see below), whose sum is σ = 5112380. Its totient is φ = 674136.

The previous prime is 2022421. The next prime is 2022469. The reversal of 2022444 is 4442202.

2022444 = T₁₃₇ + T₁₃₈ + ... + T₂₄₄.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28054 + ... + 28125.

2^2022444 is an apocalyptic number.

It is an amenable number.

2022444 is an abundant number, since it is smaller than the sum of its proper divisors (3089936).

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

2022444 is a wasteful number, since it uses less digits than its factorization.

2022444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56189 (or 56184 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2022444 is about 1422.1265766450. The cubic root of 2022444 is about 126.4616474109.

Adding to 2022444 its reverse (4442202), we get a palindrome (6464646).

The spelling of 2022444 in words is "two million, twenty-two thousand, four hundred forty-four".