30515541940 has 24 divisors (see below), whose sum is σ = 69012072360. Its totient is φ = 11267276928.

The previous prime is 30515541937. The next prime is 30515542087. The reversal of 30515541940 is 4914551503.

It can be written as a sum of positive squares in 4 ways, for example, as 158055184 + 30357486756 = 12572^2 + 174234^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30515541940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58683475 + ... + 58683994.

It is an arithmetic number, because the mean of its divisors is an integer number (2875503015).

Almost surely, 2^30515541940 is an apocalyptic number.

It is an amenable number.

30515541940 is an abundant number, since it is smaller than the sum of its proper divisors (38496530420).

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

30515541940 is a wasteful number, since it uses less digits than its factorization.

30515541940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117367491 (or 117367489 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 30515541940 in words is "thirty billion, five hundred fifteen million, five hundred forty-one thousand, nine hundred forty".