30239975040 has 512 divisors, whose sum is σ = 110115936000. Its totient is φ = 6991380480.

The previous prime is 30239975021. The next prime is 30239975063. The reversal of 30239975040 is 4057993203.

It is a junction number, because it is equal to n+sod(n) for n = 30239974983 and 30239975001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59410306 + ... + 59410814.

Almost surely, 2^30239975040 is an apocalyptic number.

30239975040 is a gapful number since it is divisible by the number (30) 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 30239975040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55057968000).

30239975040 is an abundant number, since it is smaller than the sum of its proper divisors (79875960960).

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

30239975040 is a wasteful number, since it uses less digits than its factorization.

30239975040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The spelling of 30239975040 in words is "thirty billion, two hundred thirty-nine million, nine hundred seventy-five thousand, forty".