1001042432 has 120 divisors (see below), whose sum is σ = 2264480064. Its totient is φ = 441053184.

The previous prime is 1001042431. The next prime is 1001042509. The reversal of 1001042432 is 2342401001.

It is a self number, because there is not a number n which added to its sum of digits gives 1001042432.

It is not an unprimeable number, because it can be changed into a prime (1001042431) 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 11 ways as a sum of consecutive naturals, for example, 1989893 + ... + 1990395.

Almost surely, 2^1001042432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001042432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1132240032).

1001042432 is an abundant number, since it is smaller than the sum of its proper divisors (1263437632).

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

1001042432 is an equidigital number, since it uses as much as digits as its factorization.

1001042432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1001042432 is about 31639.2546056319. The cubic root of 1001042432 is about 1000.3473566627.

Adding to 1001042432 its reverse (2342401001), we get a palindrome (3343443433).

The spelling of 1001042432 in words is "one billion, one million, forty-two thousand, four hundred thirty-two".