1002431444 has 12 divisors (see below), whose sum is σ = 2004862944. Its totient is φ = 429613464.

The previous prime is 1002431413. The next prime is 1002431461. The reversal of 1002431444 is 4441342001.

It is a happy number.

1002431444 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17900534 + ... + 17900589.

It is an arithmetic number, because the mean of its divisors is an integer number (167071912).

Almost surely, 2^1002431444 is an apocalyptic number.

1002431444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1002431444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1002431444 is a wasteful number, since it uses less digits than its factorization.

1002431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35801134 (or 35801132 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1002431444 is about 31661.1977663512. The cubic root of 1002431444 is about 1000.8098253392.

Adding to 1002431444 its reverse (4441342001), we get a palindrome (5443773445).

The spelling of 1002431444 in words is "one billion, two million, four hundred thirty-one thousand, four hundred forty-four".