1322431 has 8 divisors (see below), whose sum is σ = 1505664. Its totient is φ = 1149720.

The previous prime is 1322423. The next prime is 1322437. The reversal of 1322431 is 1342231.

1322431 = 103² + 104² + ... + 171².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1322431 - 2³ = 1322423 is a prime.

It is a super-2 number, since 2×1322431² = 3497647499522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322437) 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 7 ways as a sum of consecutive naturals, for example, 2361 + ... + 2866.

It is an arithmetic number, because the mean of its divisors is an integer number (188208).

2^1322431 is an apocalyptic number.

1322431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1322431 is a deficient number, since it is larger than the sum of its proper divisors (183233).

1322431 is a wasteful number, since it uses less digits than its factorization.

1322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5261.

The product of its digits is 144, while the sum is 16.

The square root of 1322431 is about 1149.9699996087. The cubic root of 1322431 is about 109.7634309869.

Adding to 1322431 its reverse (1342231), we get a palindrome (2664662).

The spelling of 1322431 in words is "one million, three hundred twenty-two thousand, four hundred thirty-one".