2213946 has 32 divisors (see below), whose sum is σ = 5623680. Its totient is φ = 632448.

The previous prime is 2213933. The next prime is 2213963. The reversal of 2213946 is 6493122.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551 + ... + 3306.

It is an arithmetic number, because the mean of its divisors is an integer number (175740).

2^2213946 is an apocalyptic number.

2213946 is an abundant number, since it is smaller than the sum of its proper divisors (3409734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2213946 is a wasteful number, since it uses less digits than its factorization.

2213946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875 (or 5869 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 2213946 is about 1487.9334662545. The cubic root of 2213946 is about 130.3333849348. Note that the first 4 decimals are identical.

The spelling of 2213946 in words is "two million, two hundred thirteen thousand, nine hundred forty-six".