330778242 has 40 divisors (see below), whose sum is σ = 759281292. Its totient is φ = 107568000.

The previous prime is 330778241. The next prime is 330778243. The reversal of 330778242 is 242877033.

It is an interprime number because it is at equal distance from previous prime (330778241) and next prime (330778243).

It can be written as a sum of positive squares in 2 ways, for example, as 292102281 + 38675961 = 17091^2 + 6219^2 .

It is a super-2 number, since 2×330778242² = 218828490761221128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 330778197 and 330778206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330778241) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18259 + ... + 31542.

Almost surely, 2^330778242 is an apocalyptic number.

330778242 is an abundant number, since it is smaller than the sum of its proper divisors (428503050).

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

330778242 is a wasteful number, since it uses less digits than its factorization.

330778242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49856 (or 49847 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 330778242 is about 18187.3099165325. The cubic root of 330778242 is about 691.5851269888.

The spelling of 330778242 in words is "three hundred thirty million, seven hundred seventy-eight thousand, two hundred forty-two".