2219942 has 8 divisors (see below), whose sum is σ = 3364536. Its totient is φ = 1098432.

The previous prime is 2219939. The next prime is 2219947. The reversal of 2219942 is 2499122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5528 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (420567).

2^2219942 is an apocalyptic number.

2219942 is a deficient number, since it is larger than the sum of its proper divisors (1144594).

2219942 is a wasteful number, since it uses less digits than its factorization.

2219942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11542.

The product of its digits is 2592, while the sum is 29.

The square root of 2219942 is about 1489.9469789224. The cubic root of 2219942 is about 130.4509389230.

The spelling of 2219942 in words is "two million, two hundred nineteen thousand, nine hundred forty-two".