2190671 has 16 divisors (see below), whose sum is σ = 2721600. Its totient is φ = 1720320.

The previous prime is 2190653. The next prime is 2190679. The reversal of 2190671 is 1760912.

It is not a de Polignac number, because 2190671 - 2⁶ = 2190607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2190671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4655 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2^2190671 is an apocalyptic number.

2190671 is a deficient number, since it is larger than the sum of its proper divisors (530929).

2190671 is a wasteful number, since it uses less digits than its factorization.

2190671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 2190671 is about 1480.0915512224. The cubic root of 2190671 is about 129.8750475905.

It can be divided in two parts, 21 and 90671, that multiplied together give a palindrome (1904091).

The spelling of 2190671 in words is "two million, one hundred ninety thousand, six hundred seventy-one".