2190379 has 4 divisors (see below), whose sum is σ = 2215080. Its totient is φ = 2165680.

The previous prime is 2190371. The next prime is 2190389. The reversal of 2190379 is 9730912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2190379 - 2³ = 2190371 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2190379.

It is not an unprimeable number, because it can be changed into a prime (2190371) 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, 12217 + ... + 12394.

It is an arithmetic number, because the mean of its divisors is an integer number (553770).

2^2190379 is an apocalyptic number.

2190379 is a deficient number, since it is larger than the sum of its proper divisors (24701).

2190379 is an equidigital number, since it uses as much as digits as its factorization.

2190379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24700.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 2190379 is about 1479.9929053884. The cubic root of 2190379 is about 129.8692768778.

The spelling of 2190379 in words is "two million, one hundred ninety thousand, three hundred seventy-nine".