305214073540 has 24 divisors (see below), whose sum is σ = 641185919640. Its totient is φ = 122040607488.

The previous prime is 305214073531. The next prime is 305214073597. The reversal of 305214073540 is 45370412503.

It can be written as a sum of positive squares in 4 ways, for example, as 62701161604 + 242512911936 = 250402^2 + 492456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305214073496 and 305214073505.

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, 2758255 + ... + 2866774.

It is an arithmetic number, because the mean of its divisors is an integer number (26716079985).

Almost surely, 2^305214073540 is an apocalyptic number.

It is an amenable number.

305214073540 is an abundant number, since it is smaller than the sum of its proper divisors (335971846100).

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

305214073540 is a wasteful number, since it uses less digits than its factorization.

305214073540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627751 (or 5627749 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 305214073540 in words is "three hundred five billion, two hundred fourteen million, seventy-three thousand, five hundred forty".