1572222 has 16 divisors (see below), whose sum is σ = 3192192. Its totient is φ = 516120.

The previous prime is 1572217. The next prime is 1572239. The reversal of 1572222 is 2222751.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1554 + ... + 2357.

It is an arithmetic number, because the mean of its divisors is an integer number (199512).

2^1572222 is an apocalyptic number.

1572222 is an abundant number, since it is smaller than the sum of its proper divisors (1619970).

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

1572222 is a wasteful number, since it uses less digits than its factorization.

1572222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983.

The product of its digits is 560, while the sum is 21.

The square root of 1572222 is about 1253.8827696400. The cubic root of 1572222 is about 116.2798928791.

Adding to 1572222 its reverse (2222751), we get a palindrome (3794973).

The spelling of 1572222 in words is "one million, five hundred seventy-two thousand, two hundred twenty-two".