1972222 has 16 divisors (see below), whose sum is σ = 3404160. Its totient is φ = 839448.

The previous prime is 1972207. The next prime is 1972231. The reversal of 1972222 is 2222791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (212760).

2^1972222 is an apocalyptic number.

1972222 is a deficient number, since it is larger than the sum of its proper divisors (1431938).

1972222 is a wasteful number, since it uses less digits than its factorization.

1972222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975.

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

The square root of 1972222 is about 1404.3582164106. The cubic root of 1972222 is about 125.4060820173.

It can be divided in two parts, 197 and 2222, that multiplied together give a palindrome (437734).

The spelling of 1972222 in words is "one million, nine hundred seventy-two thousand, two hundred twenty-two".