1922272 has 48 divisors (see below), whose sum is σ = 4257792. Its totient is φ = 846720.

The previous prime is 1922269. The next prime is 1922273. The reversal of 1922272 is 2722291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15073 + ... + 15199.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

2^1922272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1922272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2128896).

1922272 is an abundant number, since it is smaller than the sum of its proper divisors (2335520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1922272 is a wasteful number, since it uses less digits than its factorization.

1922272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 183 counting only the distinct ones).

The product of its digits is 1008, while the sum is 25.

The square root of 1922272 is about 1386.4602410455. The cubic root of 1922272 is about 124.3383061371.

The spelling of 1922272 in words is "one million, nine hundred twenty-two thousand, two hundred seventy-two".