305542415240 has 16 divisors (see below), whose sum is σ = 687470434380. Its totient is φ = 122216966080.

The previous prime is 305542415207. The next prime is 305542415249. The reversal of 305542415240 is 42514245503.

It can be written as a sum of positive squares in 2 ways, for example, as 304940301796 + 602113444 = 552214^2 + 24538^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 305542415240.

It is not an unprimeable number, because it can be changed into a prime (305542415249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3819280151 + ... + 3819280230.

Almost surely, 2^305542415240 is an apocalyptic number.

It is an amenable number.

305542415240 is an abundant number, since it is smaller than the sum of its proper divisors (381928019140).

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

305542415240 is a wasteful number, since it uses less digits than its factorization.

305542415240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7638560392 (or 7638560388 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The spelling of 305542415240 in words is "three hundred five billion, five hundred forty-two million, four hundred fifteen thousand, two hundred forty".