20402214304 has 12 divisors (see below), whose sum is σ = 40166859474. Its totient is φ = 10201107136.

The previous prime is 20402214293. The next prime is 20402214319. The reversal of 20402214304 is 40341220402.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19920499600 + 481714704 = 141140^2 + 21948^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318784567 + ... + 318784630.

Almost surely, 2^20402214304 is an apocalyptic number.

It is an amenable number.

20402214304 is a deficient number, since it is larger than the sum of its proper divisors (19764645170).

20402214304 is an equidigital number, since it uses as much as digits as its factorization.

20402214304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637569207 (or 637569199 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20402214304 its reverse (40341220402), we get a palindrome (60743434706).

The spelling of 20402214304 in words is "twenty billion, four hundred two million, two hundred fourteen thousand, three hundred four".