2172470 has 16 divisors (see below), whose sum is σ = 3985200. Its totient is φ = 852384.

The previous prime is 2172461. The next prime is 2172473. The reversal of 2172470 is 742712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 2579.

It is an arithmetic number, because the mean of its divisors is an integer number (249075).

2^2172470 is an apocalyptic number.

2172470 is a deficient number, since it is larger than the sum of its proper divisors (1812730).

2172470 is a wasteful number, since it uses less digits than its factorization.

2172470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4159.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 2172470 is about 1473.9301204603. The cubic root of 2172470 is about 129.5143616397.

The spelling of 2172470 in words is "two million, one hundred seventy-two thousand, four hundred seventy".