1431222 has 32 divisors (see below), whose sum is σ = 3144960. Its totient is φ = 431520.

The previous prime is 1431217. The next prime is 1431223. The reversal of 1431222 is 2221341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4447 + ... + 4757.

It is an arithmetic number, because the mean of its divisors is an integer number (98280).

2^1431222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1431222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572480).

1431222 is an abundant number, since it is smaller than the sum of its proper divisors (1713738).

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

1431222 is a wasteful number, since it uses less digits than its factorization.

1431222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388.

The product of its digits is 96, while the sum is 15.

The square root of 1431222 is about 1196.3369090687. The cubic root of 1431222 is about 112.6943996869.

Adding to 1431222 its reverse (2221341), we get a palindrome (3652563).

It can be divided in two parts, 1431 and 222, that added together give a triangular number (1653 = T₅₇).

The spelling of 1431222 in words is "one million, four hundred thirty-one thousand, two hundred twenty-two".