21320000298 has 24 divisors (see below), whose sum is σ = 46300527936. Its totient is φ = 7090175400.

The previous prime is 21320000279. The next prime is 21320000309. The reversal of 21320000298 is 89200002312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366308 + ... + 1381823.

It is an arithmetic number, because the mean of its divisors is an integer number (1929188664).

Almost surely, 2^21320000298 is an apocalyptic number.

21320000298 is an abundant number, since it is smaller than the sum of its proper divisors (24980527638).

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

21320000298 is a wasteful number, since it uses less digits than its factorization.

21320000298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748570 (or 2748567 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 21320000298 in words is "twenty-one billion, three hundred twenty million, two hundred ninety-eight", and thus it is an aban number.