330221904 has 40 divisors (see below), whose sum is σ = 853992960. Its totient is φ = 109955328.

The previous prime is 330221887. The next prime is 330221933. The reversal of 330221904 is 409122033.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49012 + ... + 55340.

It is an arithmetic number, because the mean of its divisors is an integer number (21349824).

Almost surely, 2^330221904 is an apocalyptic number.

It is an amenable number.

330221904 is an abundant number, since it is smaller than the sum of its proper divisors (523771056).

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

330221904 is a wasteful number, since it uses less digits than its factorization.

330221904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427 (or 7421 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 330221904 is about 18172.0088047524. The cubic root of 330221904 is about 691.1971822909.

Adding to 330221904 its reverse (409122033), we get a palindrome (739343937).

The spelling of 330221904 in words is "three hundred thirty million, two hundred twenty-one thousand, nine hundred four".