30406820000 has 60 divisors (see below), whose sum is σ = 74805387426. Its totient is φ = 12162720000.

The previous prime is 30406819981. The next prime is 30406820009. The reversal of 30406820000 is 2860403.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 462594064 + 29944225936 = 21508^2 + 173044^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30406820009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 740171 + ... + 780170.

Almost surely, 2^30406820000 is an apocalyptic number.

It is an amenable number.

30406820000 is an abundant number, since it is smaller than the sum of its proper divisors (44398567426).

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

30406820000 is an equidigital number, since it uses as much as digits as its factorization.

30406820000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520371 (or 1520348 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The spelling of 30406820000 in words is "thirty billion, four hundred six million, eight hundred twenty thousand".