2190394 has 8 divisors (see below), whose sum is σ = 3306240. Its totient is φ = 1088316.

The previous prime is 2190389. The next prime is 2190403. The reversal of 2190394 is 4930912.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034 + ... + 3685.

It is an arithmetic number, because the mean of its divisors is an integer number (413280).

2^2190394 is an apocalyptic number.

2190394 is a deficient number, since it is larger than the sum of its proper divisors (1115846).

2190394 is a wasteful number, since it uses less digits than its factorization.

2190394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6884.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2190394 is about 1479.9979729716. The cubic root of 2190394 is about 129.8695733310.

The spelling of 2190394 in words is "two million, one hundred ninety thousand, three hundred ninety-four".