20100790 has 16 divisors (see below), whose sum is σ = 36444240. Its totient is φ = 7981920.

The previous prime is 20100733. The next prime is 20100809. The reversal of 20100790 is 9700102.

20100790 = 993² + 994² + ... + 1012².

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, 5841 + ... + 8620.

It is an arithmetic number, because the mean of its divisors is an integer number (2277765).

Almost surely, 2^20100790 is an apocalyptic number.

20100790 is a deficient number, since it is larger than the sum of its proper divisors (16343450).

20100790 is a wasteful number, since it uses less digits than its factorization.

20100790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14607.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 20100790 is about 4483.3904581243. The cubic root of 20100790 is about 271.8969747509.

Adding to 20100790 its reverse (9700102), we get a palindrome (29800892).

The spelling of 20100790 in words is "twenty million, one hundred thousand, seven hundred ninety".