330985250 has 16 divisors (see below), whose sum is σ = 619604856. Its totient is φ = 132394000.

The previous prime is 330985217. The next prime is 330985253. The reversal of 330985250 is 52589033.

It is a Cunningham number, because it is equal to 18193²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 40998409 + 289986841 = 6403^2 + 17029^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 330985250.

It is not an unprimeable number, because it can be changed into a prime (330985253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661721 + ... + 662220.

Almost surely, 2^330985250 is an apocalyptic number.

330985250 is a deficient number, since it is larger than the sum of its proper divisors (288619606).

330985250 is a wasteful number, since it uses less digits than its factorization.

330985250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323958 (or 1323948 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 330985250 is about 18193.0000274831. Note that the first 4 decimals coincide. The cubic root of 330985250 is about 691.7293664230.

The spelling of 330985250 in words is "three hundred thirty million, nine hundred eighty-five thousand, two hundred fifty".