20698466 has 8 divisors (see below), whose sum is σ = 31886940. Its totient is φ = 10069488.

The previous prime is 20698453. The next prime is 20698477. The reversal of 20698466 is 66489602.

It can be written as a sum of positive squares in 2 ways, for example, as 16638241 + 4060225 = 4079^2 + 2015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 139781 + ... + 139928.

Almost surely, 2^20698466 is an apocalyptic number.

20698466 is a deficient number, since it is larger than the sum of its proper divisors (11188474).

20698466 is a wasteful number, since it uses less digits than its factorization.

20698466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279748.

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 20698466 is about 4549.5566816999. The cubic root of 20698466 is about 274.5655553486.

The spelling of 20698466 in words is "twenty million, six hundred ninety-eight thousand, four hundred sixty-six".