1432321 has 4 divisors (see below), whose sum is σ = 1562544. Its totient is φ = 1302100.

The previous prime is 1432313. The next prime is 1432351. The reversal of 1432321 is 1232341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1232341 = 11 ⋅112031.

It is a cyclic number.

It is not a de Polignac number, because 1432321 - 2³ = 1432313 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1432295 and 1432304.

It is not an unprimeable number, because it can be changed into a prime (1432351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65095 + ... + 65116.

It is an arithmetic number, because the mean of its divisors is an integer number (390636).

2^1432321 is an apocalyptic number.

1432321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1432321 is a deficient number, since it is larger than the sum of its proper divisors (130223).

1432321 is a wasteful number, since it uses less digits than its factorization.

1432321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130222.

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

The square root of 1432321 is about 1196.7961396997. The cubic root of 1432321 is about 112.7232373883.

Adding to 1432321 its reverse (1232341), we get a palindrome (2664662).

The spelling of 1432321 in words is "one million, four hundred thirty-two thousand, three hundred twenty-one".