1922402227 has 4 divisors (see below), whose sum is σ = 1923192216. Its totient is φ = 1921612240.

The previous prime is 1922402213. The next prime is 1922402233. The reversal of 1922402227 is 7222042291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7222042291 = 19 ⋅380107489.

It is a cyclic number.

It is not a de Polignac number, because 1922402227 - 2⁷ = 1922402099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1922402627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391333 + ... + 396214.

It is an arithmetic number, because the mean of its divisors is an integer number (480798054).

Almost surely, 2^1922402227 is an apocalyptic number.

1922402227 is a deficient number, since it is larger than the sum of its proper divisors (789989).

1922402227 is an equidigital number, since it uses as much as digits as its factorization.

1922402227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789988.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1922402227 is about 43845.2075716377. The cubic root of 1922402227 is about 1243.4111389775.

The spelling of 1922402227 in words is "one billion, nine hundred twenty-two million, four hundred two thousand, two hundred twenty-seven".