1001320432 has 40 divisors (see below), whose sum is σ = 2218893696. Its totient is φ = 428811456.

The previous prime is 1001320423. The next prime is 1001320457. The reversal of 1001320432 is 2340231001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197643 + ... + 202645.

Almost surely, 2^1001320432 is an apocalyptic number.

It is an amenable number.

1001320432 is an abundant number, since it is smaller than the sum of its proper divisors (1217573264).

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

1001320432 is a wasteful number, since it uses less digits than its factorization.

1001320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805 (or 6799 counting only the distinct ones).

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

The square root of 1001320432 is about 31643.6475773574. The cubic root of 1001320432 is about 1000.4399504152.

Adding to 1001320432 its reverse (2340231001), we get a palindrome (3341551433).

The spelling of 1001320432 in words is "one billion, one million, three hundred twenty thousand, four hundred thirty-two".