1330431 has 8 divisors (see below), whose sum is σ = 1781424. Its totient is φ = 883200.

The previous prime is 1330423. The next prime is 1330453. The reversal of 1330431 is 1340331.

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

It is not a de Polignac number, because 1330431 - 2³ = 1330423 is a prime.

It is a super-2 number, since 2×1330431² = 3540093291522, which contains 22 as substring.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1330431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330411) 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, 31 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (222678).

2^1330431 is an apocalyptic number.

1330431 is a deficient number, since it is larger than the sum of its proper divisors (450993).

1330431 is a wasteful number, since it uses less digits than its factorization.

1330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1330431 is about 1153.4431065293. The cubic root of 1330431 is about 109.9843228347.

Adding to 1330431 its reverse (1340331), we get a palindrome (2670762).

The spelling of 1330431 in words is "one million, three hundred thirty thousand, four hundred thirty-one".