333228909 has 16 divisors (see below), whose sum is σ = 486329984. Its totient is φ = 201700800.

The previous prime is 333228901. The next prime is 333228941. The reversal of 333228909 is 909822333.

It is not a de Polignac number, because 333228909 - 2³ = 333228901 is a prime.

It is a super-2 number, since 2×333228909² = 222083011586660562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (333228901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67657 + ... + 72414.

It is an arithmetic number, because the mean of its divisors is an integer number (30395624).

Almost surely, 2^333228909 is an apocalyptic number.

333228909 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

333228909 is a deficient number, since it is larger than the sum of its proper divisors (153101075).

333228909 is a wasteful number, since it uses less digits than its factorization.

333228909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140148.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 333228909 is about 18254.5585813517. The cubic root of 333228909 is about 693.2888629998.

The spelling of 333228909 in words is "three hundred thirty-three million, two hundred twenty-eight thousand, nine hundred nine".