2172190 has 8 divisors (see below), whose sum is σ = 3909960. Its totient is φ = 868872.

The previous prime is 2172179. The next prime is 2172197. The reversal of 2172190 is 912712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2172190² = 9436818792200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108600 + ... + 108619.

It is an arithmetic number, because the mean of its divisors is an integer number (488745).

2^2172190 is an apocalyptic number.

2172190 is a deficient number, since it is larger than the sum of its proper divisors (1737770).

2172190 is a wasteful number, since it uses less digits than its factorization.

2172190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217226.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 2172190 is about 1473.8351332493. The cubic root of 2172190 is about 129.5087972239.

The spelling of 2172190 in words is "two million, one hundred seventy-two thousand, one hundred ninety".