30840270912 has 560 divisors, whose sum is σ = 106030166400. Its totient is φ = 8770544640.

The previous prime is 30840270899. The next prime is 30840270913. The reversal of 30840270912 is 21907204803.

It is a super-2 number, since 2×30840270912² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30840270913) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 581891878 + ... + 581891930.

Almost surely, 2^30840270912 is an apocalyptic number.

30840270912 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 30840270912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53015083200).

30840270912 is an abundant number, since it is smaller than the sum of its proper divisors (75189895488).

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

30840270912 is an equidigital number, since it uses as much as digits as its factorization.

30840270912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 30840270912 in words is "thirty billion, eight hundred forty million, two hundred seventy thousand, nine hundred twelve".