16629172 has 12 divisors (see below), whose sum is σ = 33258400. Its totient is φ = 7126776.

The previous prime is 16629167. The next prime is 16629187. The reversal of 16629172 is 27192661.

16629172 is an admirable number.

It is a super-2 number, since 2×16629172² = 553058722811168, 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296922 + ... + 296977.

Almost surely, 2^16629172 is an apocalyptic number.

It is an amenable number.

16629172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16629172 is a wasteful number, since it uses less digits than its factorization.

16629172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593910 (or 593908 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 16629172 is about 4077.8881789475. Note that the first 3 decimals coincide. The cubic root of 16629172 is about 255.2447835310.

The spelling of 16629172 in words is "sixteen million, six hundred twenty-nine thousand, one hundred seventy-two".