3642172 has 12 divisors (see below), whose sum is σ = 6389656. Its totient is φ = 1816560.

The previous prime is 3642157. The next prime is 3642203. The reversal of 3642172 is 2712463.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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 in 3 ways as a sum of consecutive naturals, for example, 1222 + ... + 2962.

Almost surely, 2^3642172 is an apocalyptic number.

It is an amenable number.

3642172 is a deficient number, since it is larger than the sum of its proper divisors (2747484).

3642172 is a wasteful number, since it uses less digits than its factorization.

3642172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2266 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 3642172 is about 1908.4475366119. The cubic root of 3642172 is about 153.8580239816.

The spelling of 3642172 in words is "three million, six hundred forty-two thousand, one hundred seventy-two".