20046020 has 24 divisors (see below), whose sum is σ = 42534744. Its totient is φ = 7934976.

The previous prime is 20046011. The next prime is 20046053. The reversal of 20046020 is 2064002.

It can be written as a sum of positive squares in 4 ways, for example, as 3334276 + 16711744 = 1826^2 + 4088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20045986 and 20046004.

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, 3227 + ... + 7106.

It is an arithmetic number, because the mean of its divisors is an integer number (1772281).

Almost surely, 2^20046020 is an apocalyptic number.

20046020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20046020 is an abundant number, since it is smaller than the sum of its proper divisors (22488724).

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

20046020 is a wasteful number, since it uses less digits than its factorization.

20046020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10439 (or 10437 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20046020 is about 4477.2781910442. The cubic root of 20046020 is about 271.6497980083.

The spelling of 20046020 in words is "twenty million, forty-six thousand, twenty".