20442028 has 24 divisors (see below), whose sum is σ = 36887312. Its totient is φ = 9906624.

The previous prime is 20442011. The next prime is 20442053. The reversal of 20442028 is 82024402.

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, 26626 + ... + 27382.

Almost surely, 2^20442028 is an apocalyptic number.

It is an amenable number.

20442028 is a deficient number, since it is larger than the sum of its proper divisors (16445284).

20442028 is a wasteful number, since it uses less digits than its factorization.

20442028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 959 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 20442028 is about 4521.2861002153. The cubic root of 20442028 is about 273.4269551721.

The spelling of 20442028 in words is "twenty million, four hundred forty-two thousand, twenty-eight".