33331072 has 16 divisors (see below), whose sum is σ = 66402000. Its totient is φ = 16665472.

The previous prime is 33331069. The next prime is 33331087. The reversal of 33331072 is 27013333.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×33331072² = 2221920721338368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130072 + ... + 130327.

It is an arithmetic number, because the mean of its divisors is an integer number (4150125).

Almost surely, 2^33331072 is an apocalyptic number.

33331072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

33331072 is a deficient number, since it is larger than the sum of its proper divisors (33070928).

33331072 is an equidigital number, since it uses as much as digits as its factorization.

33331072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260413 (or 260401 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 22.

The square root of 33331072 is about 5773.3068513634. The cubic root of 33331072 is about 321.8225170595.

The spelling of 33331072 in words is "thirty-three million, three hundred thirty-one thousand, seventy-two".