20284682 has 24 divisors (see below), whose sum is σ = 33795300. Its totient is φ = 9123840.

The previous prime is 20284669. The next prime is 20284697. The reversal of 20284682 is 28648202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20241001 + 43681 = 4499^2 + 209^2 .

It is a super-2 number, since 2×20284682² = 822936647682248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25994 + ... + 26762.

Almost surely, 2^20284682 is an apocalyptic number.

20284682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20284682 is a deficient number, since it is larger than the sum of its proper divisors (13510618).

20284682 is a wasteful number, since it uses less digits than its factorization.

20284682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 20284682 is about 4503.8519069792. The cubic root of 20284682 is about 272.7236085097.

The spelling of 20284682 in words is "twenty million, two hundred eighty-four thousand, six hundred eighty-two".