4002172 has 12 divisors (see below), whose sum is σ = 7022176. Its totient is φ = 1995840.

The previous prime is 4002169. The next prime is 4002197. The reversal of 4002172 is 2712004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772 + ... + 2932.

Almost surely, 2^4002172 is an apocalyptic number.

It is an amenable number.

4002172 is a deficient number, since it is larger than the sum of its proper divisors (3020004).

4002172 is a wasteful number, since it uses less digits than its factorization.

4002172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 4002172 is about 2000.5429263078. The cubic root of 4002172 is about 158.7688319569.

Adding to 4002172 its reverse (2712004), we get a palindrome (6714176).

The spelling of 4002172 in words is "four million, two thousand, one hundred seventy-two".