20898410 has 16 divisors (see below), whose sum is σ = 40511016. Its totient is φ = 7716288.

The previous prime is 20898401. The next prime is 20898413. The reversal of 20898410 is 1489802.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5303809 + 15594601 = 2303^2 + 3949^2 .

It is not an unprimeable number, because it can be changed into a prime (20898413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80249 + ... + 80508.

Almost surely, 2^20898410 is an apocalyptic number.

20898410 is a deficient number, since it is larger than the sum of its proper divisors (19612606).

20898410 is a wasteful number, since it uses less digits than its factorization.

20898410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160777.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 20898410 is about 4571.4778791984. The cubic root of 20898410 is about 275.4468108336.

The spelling of 20898410 in words is "twenty million, eight hundred ninety-eight thousand, four hundred ten".