20126020 has 12 divisors (see below), whose sum is σ = 42264684. Its totient is φ = 8050400.

The previous prime is 20126017. The next prime is 20126033. The reversal of 20126020 is 2062102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10969344 + 9156676 = 3312^2 + 3026^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503131 + ... + 503170.

It is an arithmetic number, because the mean of its divisors is an integer number (3522057).

Almost surely, 2^20126020 is an apocalyptic number.

20126020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20126020 is an abundant number, since it is smaller than the sum of its proper divisors (22138664).

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

20126020 is a wasteful number, since it uses less digits than its factorization.

20126020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006310 (or 1006308 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20126020 is about 4486.2032945465. The cubic root of 20126020 is about 272.0106865755.

Adding to 20126020 its reverse (2062102), we get a palindrome (22188122).

The spelling of 20126020 in words is "twenty million, one hundred twenty-six thousand, twenty".