20960810 has 16 divisors (see below), whose sum is σ = 40631976. Its totient is φ = 7739328.

The previous prime is 20960803. The next prime is 20960831. The reversal of 20960810 is 1806902.

It can be written as a sum of positive squares in 4 ways, for example, as 7070281 + 13890529 = 2659^2 + 3727^2 .

It is a super-2 number, since 2×20960810² = 878711111712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 20960810.

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, 80489 + ... + 80748.

Almost surely, 2^20960810 is an apocalyptic number.

20960810 is a deficient number, since it is larger than the sum of its proper divisors (19671166).

20960810 is a wasteful number, since it uses less digits than its factorization.

20960810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161257.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 20960810 is about 4578.2977185849. The cubic root of 20960810 is about 275.7206881664.

The spelling of 20960810 in words is "twenty million, nine hundred sixty thousand, eight hundred ten".