330947021 has 8 divisors (see below), whose sum is σ = 337311744. Its totient is φ = 324612720.

The previous prime is 330947017. The next prime is 330947059. The reversal of 330947021 is 120749033.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 330947021 - 2² = 330947017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330947011) 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, 14996 + ... + 29778.

It is an arithmetic number, because the mean of its divisors is an integer number (42163968).

Almost surely, 2^330947021 is an apocalyptic number.

It is an amenable number.

330947021 is a deficient number, since it is larger than the sum of its proper divisors (6364723).

330947021 is a wasteful number, since it uses less digits than its factorization.

330947021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15211.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 330947021 is about 18191.9493457958. The cubic root of 330947021 is about 691.7027336751.

The spelling of 330947021 in words is "three hundred thirty million, nine hundred forty-seven thousand, twenty-one".