1922239 has 4 divisors (see below), whose sum is σ = 2097000. Its totient is φ = 1747480.

The previous prime is 1922233. The next prime is 1922269. The reversal of 1922239 is 9322291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1922239 - 2⁷ = 1922111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87364 + ... + 87385.

It is an arithmetic number, because the mean of its divisors is an integer number (524250).

2^1922239 is an apocalyptic number.

1922239 is a deficient number, since it is larger than the sum of its proper divisors (174761).

1922239 is a wasteful number, since it uses less digits than its factorization.

1922239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174760.

The product of its digits is 1944, while the sum is 28.

The square root of 1922239 is about 1386.4483401844. The cubic root of 1922239 is about 124.3375946201.

The spelling of 1922239 in words is "one million, nine hundred twenty-two thousand, two hundred thirty-nine".