30984258420 has 72 divisors (see below), whose sum is σ = 96277938120. Its totient is φ = 8060943360.

The previous prime is 30984258377. The next prime is 30984258439. The reversal of 30984258420 is 2485248903.

30984258420 is a `hidden beast` number, since 3 + 0 + 9 + 8 + 42 + 584 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4049540496 + 26934717924 = 63636^2 + 164118^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2091825 + ... + 2106584.

It is an arithmetic number, because the mean of its divisors is an integer number (1337193585).

Almost surely, 2^30984258420 is an apocalyptic number.

30984258420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30984258420 is an abundant number, since it is smaller than the sum of its proper divisors (65293679700).

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

30984258420 is a wasteful number, since it uses less digits than its factorization.

30984258420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198465 (or 4198460 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 30984258420 in words is "thirty billion, nine hundred eighty-four million, two hundred fifty-eight thousand, four hundred twenty".