30442600020 has 96 divisors (see below), whose sum is σ = 98278564608. Its totient is φ = 6896719872.

The previous prime is 30442600007. The next prime is 30442600031. The reversal of 30442600020 is 2000624403.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30442600020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273259 + ... + 368178.

It is an arithmetic number, because the mean of its divisors is an integer number (1023735048).

Almost surely, 2^30442600020 is an apocalyptic number.

30442600020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30442600020 is an abundant number, since it is smaller than the sum of its proper divisors (67835964588).

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

30442600020 is a wasteful number, since it uses less digits than its factorization.

30442600020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641569 (or 641567 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The spelling of 30442600020 in words is "thirty billion, four hundred forty-two million, six hundred thousand, twenty".