20461338 has 12 divisors (see below), whose sum is σ = 44332938. Its totient is φ = 6820440.

The previous prime is 20461321. The next prime is 20461349. The reversal of 20461338 is 83316402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13155129 + 7306209 = 3627^2 + 2703^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568353 + ... + 568388.

Almost surely, 2^20461338 is an apocalyptic number.

20461338 is an abundant number, since it is smaller than the sum of its proper divisors (23871600).

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

20461338 is a wasteful number, since it uses less digits than its factorization.

20461338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136749 (or 1136746 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20461338 is about 4523.4210504882. The cubic root of 20461338 is about 273.5130231637.

The spelling of 20461338 in words is "twenty million, four hundred sixty-one thousand, three hundred thirty-eight".