2190946 has 8 divisors (see below), whose sum is σ = 3294720. Its totient is φ = 1092708.

The previous prime is 2190901. The next prime is 2190959. The reversal of 2190946 is 6490912.

It is a happy number.

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

It is a congruent number.

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, 186 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (411840).

2^2190946 is an apocalyptic number.

2190946 is a deficient number, since it is larger than the sum of its proper divisors (1103774).

2190946 is a wasteful number, since it uses less digits than its factorization.

2190946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2190946 is about 1480.1844479659. The cubic root of 2190946 is about 129.8804818682.

It can be divided in two parts, 2190 and 946, that added together give a square (3136 = 56²).

The spelling of 2190946 in words is "two million, one hundred ninety thousand, nine hundred forty-six".