330421091 has 64 divisors (see below), whose sum is σ = 464679936. Its totient is φ = 226713600.

The previous prime is 330421051. The next prime is 330421097. The reversal of 330421091 is 190124033.

It is not a de Polignac number, because 330421091 - 2¹⁰ = 330420067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (330421097) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3406355 + ... + 3406451.

It is an arithmetic number, because the mean of its divisors is an integer number (7260624).

Almost surely, 2^330421091 is an apocalyptic number.

330421091 is a deficient number, since it is larger than the sum of its proper divisors (134258845).

330421091 is a wasteful number, since it uses less digits than its factorization.

330421091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 330421091 is about 18177.4885779087. The cubic root of 330421091 is about 691.3361290807.

The spelling of 330421091 in words is "three hundred thirty million, four hundred twenty-one thousand, ninety-one".