30115523040 has 96 divisors (see below), whose sum is σ = 94902990336. Its totient is φ = 8027496960.

The previous prime is 30115523029. The next prime is 30115523083. The reversal of 30115523040 is 4032551103.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30115523040.

It is a congruent number.

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, 1289709 + ... + 1312851.

It is an arithmetic number, because the mean of its divisors is an integer number (988572816).

Almost surely, 2^30115523040 is an apocalyptic number.

30115523040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30115523040 is an abundant number, since it is smaller than the sum of its proper divisors (64787467296).

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

30115523040 is a wasteful number, since it uses less digits than its factorization.

30115523040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25872 (or 25864 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The spelling of 30115523040 in words is "thirty billion, one hundred fifteen million, five hundred twenty-three thousand, forty".