20430360328 has 32 divisors (see below), whose sum is σ = 45682796160. Its totient is φ = 8375178240.

The previous prime is 20430360271. The next prime is 20430360343. The reversal of 20430360328 is 82306303402.

It is a self number, because there is not a number n which added to its sum of digits gives 20430360328.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7929753 + ... + 7932328.

It is an arithmetic number, because the mean of its divisors is an integer number (1427587380).

Almost surely, 2^20430360328 is an apocalyptic number.

20430360328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20430360328 is an abundant number, since it is smaller than the sum of its proper divisors (25252435832).

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

20430360328 is a wasteful number, since it uses less digits than its factorization.

20430360328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15862117 (or 15862113 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The spelling of 20430360328 in words is "twenty billion, four hundred thirty million, three hundred sixty thousand, three hundred twenty-eight".