1922229 has 12 divisors (see below), whose sum is σ = 2841696. Its totient is φ = 1251432.

The previous prime is 1922213. The next prime is 1922233. The reversal of 1922229 is 9222291.

It is not a de Polignac number, because 1922229 - 2⁴ = 1922213 is a prime.

1922229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2097 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (236808).

2^1922229 is an apocalyptic number.

It is an amenable number.

1922229 is a deficient number, since it is larger than the sum of its proper divisors (919467).

1922229 is a wasteful number, since it uses less digits than its factorization.

1922229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5013 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 1922229 is about 1386.4447338426. Note that the first 3 decimals coincide. The cubic root of 1922229 is about 124.3373790073.

The spelling of 1922229 in words is "one million, nine hundred twenty-two thousand, two hundred twenty-nine".