2219929 has 4 divisors (see below), whose sum is σ = 2240784. Its totient is φ = 2199076.

The previous prime is 2219923. The next prime is 2219939. The reversal of 2219929 is 9299122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2219929 - 2⁷ = 2219801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2219894 and 2219903.

It is not an unprimeable number, because it can be changed into a prime (2219923) 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, 10267 + ... + 10480.

It is an arithmetic number, because the mean of its divisors is an integer number (560196).

2^2219929 is an apocalyptic number.

It is an amenable number.

2219929 is a deficient number, since it is larger than the sum of its proper divisors (20855).

2219929 is a wasteful number, since it uses less digits than its factorization.

2219929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20854.

The product of its digits is 5832, while the sum is 34.

The square root of 2219929 is about 1489.9426163447. The cubic root of 2219929 is about 130.4506842819.

The spelling of 2219929 in words is "two million, two hundred nineteen thousand, nine hundred twenty-nine".