30731007040 has 112 divisors (see below), whose sum is σ = 74288928384. Its totient is φ = 12107264000.

The previous prime is 30731007023. The next prime is 30731007059. The reversal of 30731007040 is 4070013703.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30731006996 and 30731007014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5740365 + ... + 5745715.

Almost surely, 2^30731007040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30731007040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37144464192).

30731007040 is an abundant number, since it is smaller than the sum of its proper divisors (43557921344).

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

30731007040 is a wasteful number, since it uses less digits than its factorization.

30731007040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5636 (or 5626 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 25.

The spelling of 30731007040 in words is "thirty billion, seven hundred thirty-one million, seven thousand, forty".