330223428 has 18 divisors (see below), whose sum is σ = 834731534. Its totient is φ = 110074464.

The previous prime is 330223427. The next prime is 330223433. The reversal of 330223428 is 824322033.

It can be written as a sum of positive squares in only one way, i.e., 299220804 + 31002624 = 17298^2 + 5568^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (330223423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4586401 + ... + 4586472.

Almost surely, 2^330223428 is an apocalyptic number.

It is an amenable number.

330223428 is an abundant number, since it is smaller than the sum of its proper divisors (504508106).

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

330223428 is a wasteful number, since it uses less digits than its factorization.

330223428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9172883 (or 9172878 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 330223428 is about 18172.0507373274. The cubic root of 330223428 is about 691.1982455990.

The spelling of 330223428 in words is "three hundred thirty million, two hundred twenty-three thousand, four hundred twenty-eight".