30115450440 has 96 divisors (see below), whose sum is σ = 97904996280. Its totient is φ = 8028343296.

The previous prime is 30115450399. The next prime is 30115450451. The reversal of 30115450440 is 4405451103.

It is a happy number.

30115450440 is a `hidden beast` number, since 3 + 0 + 1 + 154 + 504 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25589121156 + 4526329284 = 159966^2 + 67278^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384932 + ... + 1406508.

Almost surely, 2^30115450440 is an apocalyptic number.

30115450440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30115450440 is an abundant number, since it is smaller than the sum of its proper divisors (67789545840).

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

30115450440 is a wasteful number, since it uses less digits than its factorization.

30115450440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25471 (or 25464 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 30115450440 in words is "thirty billion, one hundred fifteen million, four hundred fifty thousand, four hundred forty".