33385172 has 24 divisors (see below), whose sum is σ = 59380776. Its totient is φ = 16421888.

The previous prime is 33385153. The next prime is 33385189. The reversal of 33385172 is 27158333.

It can be written as a sum of positive squares in 4 ways, for example, as 4268356 + 29116816 = 2066^2 + 5396^2 .

It is a super-2 number, since 2×33385172² = 2229139418939168, which contains 22 as substring.

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, 105158 + ... + 105474.

It is an arithmetic number, because the mean of its divisors is an integer number (2474199).

Almost surely, 2^33385172 is an apocalyptic number.

It is an amenable number.

33385172 is a deficient number, since it is larger than the sum of its proper divisors (25995604).

33385172 is a wasteful number, since it uses less digits than its factorization.

33385172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667 (or 665 counting only the distinct ones).

The product of its digits is 15120, while the sum is 32.

The square root of 33385172 is about 5777.9903080569. The cubic root of 33385172 is about 321.9965407342.

The spelling of 33385172 in words is "thirty-three million, three hundred eighty-five thousand, one hundred seventy-two".