22020478 has 16 divisors (see below), whose sum is σ = 34310016. Its totient is φ = 10588320.

The previous prime is 22020443. The next prime is 22020497. The reversal of 22020478 is 87402022.

It is a congruent number.

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, 9700 + ... + 11752.

It is an arithmetic number, because the mean of its divisors is an integer number (2144376).

Almost surely, 2^22020478 is an apocalyptic number.

22020478 is a deficient number, since it is larger than the sum of its proper divisors (12289538).

22020478 is a wasteful number, since it uses less digits than its factorization.

22020478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2259.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 22020478 is about 4692.5982142093. The cubic root of 22020478 is about 280.2908457430.

The spelling of 22020478 in words is "twenty-two million, twenty thousand, four hundred seventy-eight".