30492099072 has 120 divisors (see below), whose sum is σ = 89663400684. Its totient is φ = 9972178944.

The previous prime is 30492099049. The next prime is 30492099073. The reversal of 30492099072 is 27099029403.

30492099072 is a `hidden beast` number, since 3 + 0 + 492 + 0 + 9 + 90 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29150781696 + 1341317376 = 170736^2 + 36624^2 .

It is a super-2 number, since 2×30492099072² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30492099073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181798 + ... + 306650.

Almost surely, 2^30492099072 is an apocalyptic number.

30492099072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30492099072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44831700342).

30492099072 is an abundant number, since it is smaller than the sum of its proper divisors (59171301612).

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

30492099072 is a wasteful number, since it uses less digits than its factorization.

30492099072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124930 (or 124911 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 30492099072 in words is "thirty billion, four hundred ninety-two million, ninety-nine thousand, seventy-two".