20010028 has 6 divisors (see below), whose sum is σ = 35017556. Its totient is φ = 10005012.

The previous prime is 20010017. The next prime is 20010041. The reversal of 20010028 is 82001002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501250 + ... + 2501257.

Almost surely, 2^20010028 is an apocalyptic number.

It is an amenable number.

20010028 is a deficient number, since it is larger than the sum of its proper divisors (15007528).

20010028 is a wasteful number, since it uses less digits than its factorization.

20010028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002511 (or 5002509 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 20010028 is about 4473.2569789808. The cubic root of 20010028 is about 271.4871210457.

The spelling of 20010028 in words is "twenty million, ten thousand, twenty-eight".