305896340 has 24 divisors (see below), whose sum is σ = 647077032. Its totient is φ = 121464320.

The previous prime is 305896307. The next prime is 305896369. The reversal of 305896340 is 43698503.

It can be written as a sum of positive squares in 4 ways, for example, as 22714756 + 283181584 = 4766^2 + 16828^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305896294 and 305896303.

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, 53081 + ... + 58560.

It is an arithmetic number, because the mean of its divisors is an integer number (26961543).

Almost surely, 2^305896340 is an apocalyptic number.

It is an amenable number.

305896340 is an abundant number, since it is smaller than the sum of its proper divisors (341180692).

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

305896340 is a wasteful number, since it uses less digits than its factorization.

305896340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111787 (or 111785 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 305896340 is about 17489.8925096754. The cubic root of 305896340 is about 673.7903089026.

The spelling of 305896340 in words is "three hundred five million, eight hundred ninety-six thousand, three hundred forty".