4390172 has 6 divisors (see below), whose sum is σ = 7682808. Its totient is φ = 2195084.

The previous prime is 4390151. The next prime is 4390181. The reversal of 4390172 is 2710934.

It is a super-2 number, since 2×4390172² = 38547220379168, 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 as a sum of consecutive naturals, namely, 548768 + ... + 548775.

It is an arithmetic number, because the mean of its divisors is an integer number (1280468).

Almost surely, 2^4390172 is an apocalyptic number.

It is an amenable number.

4390172 is a deficient number, since it is larger than the sum of its proper divisors (3292636).

4390172 is a wasteful number, since it uses less digits than its factorization.

4390172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097547 (or 1097545 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 4390172 is about 2095.2737291342. The cubic root of 4390172 is about 163.7421587839.

The spelling of 4390172 in words is "four million, three hundred ninety thousand, one hundred seventy-two".