20435274304 has 63 divisors (see below), whose sum is σ = 41180353123. Its totient is φ = 10061533568.

The previous prime is 20435274281. The next prime is 20435274323. The reversal of 20435274304 is 40347253402.

The square root of 20435274304 is 142952.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20435274304.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 122366829 + ... + 122366995.

Almost surely, 2^20435274304 is an apocalyptic number.

20435274304 is the 142952-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20435274304

20435274304 is an abundant number, since it is smaller than the sum of its proper divisors (20745078819).

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

20435274304 is an frugal number, since it uses more digits than its factorization.

20435274304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 34.

The spelling of 20435274304 in words is "twenty billion, four hundred thirty-five million, two hundred seventy-four thousand, three hundred four".