33444172 has 6 divisors (see below), whose sum is σ = 58527308. Its totient is φ = 16722084.

The previous prime is 33444157. The next prime is 33444179. The reversal of 33444172 is 27144433.

It is a super-2 number, since 2×33444172² = 2237025281531168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33444172.

It is not an unprimeable number, because it can be changed into a prime (33444179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4180518 + ... + 4180525.

Almost surely, 2^33444172 is an apocalyptic number.

It is an amenable number.

33444172 is a deficient number, since it is larger than the sum of its proper divisors (25083136).

33444172 is a wasteful number, since it uses less digits than its factorization.

33444172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8361047 (or 8361045 counting only the distinct ones).

The product of its digits is 8064, while the sum is 28.

The square root of 33444172 is about 5783.0936357628. The cubic root of 33444172 is about 322.1861120762.

The spelling of 33444172 in words is "thirty-three million, four hundred forty-four thousand, one hundred seventy-two".