1902223 has 8 divisors (see below), whose sum is σ = 2041200. Its totient is φ = 1767168.

The previous prime is 1902221. The next prime is 1902239. The reversal of 1902223 is 3222091.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1902223 - 2¹ = 1902221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1902223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1902221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63 + ... + 1951.

It is an arithmetic number, because the mean of its divisors is an integer number (255150).

2^1902223 is an apocalyptic number.

1902223 is a deficient number, since it is larger than the sum of its proper divisors (138977).

1902223 is a wasteful number, since it uses less digits than its factorization.

1902223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1902223 is about 1379.2110063366. The cubic root of 1902223 is about 123.9045180676.

The spelling of 1902223 in words is "one million, nine hundred two thousand, two hundred twenty-three".