1002431 has 4 divisors (see below), whose sum is σ = 1015200. Its totient is φ = 989664.

The previous prime is 1002427. The next prime is 1002433. The reversal of 1002431 is 1342001.

1002431 = T₂₄ + T₂₅ + ... + T₁₈₁.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002431 - 2² = 1002427 is a prime.

It is a super-2 number, since 2×1002431² = 2009735819522, 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 (1002433) 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, 6266 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (253800).

2^1002431 is an apocalyptic number.

1002431 is a deficient number, since it is larger than the sum of its proper divisors (12769).

1002431 is an equidigital number, since it uses as much as digits as its factorization.

1002431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12768.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1002431 is about 1001.2147621764. The cubic root of 1002431 is about 100.0809677579.

Adding to 1002431 its reverse (1342001), we get a palindrome (2344432).

The spelling of 1002431 in words is "one million, two thousand, four hundred thirty-one".