1002032421 has 32 divisors (see below), whose sum is σ = 1526068992. Its totient is φ = 580124160.

The previous prime is 1002032401. The next prime is 1002032519. The reversal of 1002032421 is 1242302001.

It is not a de Polignac number, because 1002032421 - 2⁷ = 1002032293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002032421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002032401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45561 + ... + 63873.

It is an arithmetic number, because the mean of its divisors is an integer number (47689656).

Almost surely, 2^1002032421 is an apocalyptic number.

It is an amenable number.

1002032421 is a deficient number, since it is larger than the sum of its proper divisors (524036571).

1002032421 is a wasteful number, since it uses less digits than its factorization.

1002032421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18413.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1002032421 is about 31654.8956877131. The cubic root of 1002032421 is about 1000.6770152136.

Adding to 1002032421 its reverse (1242302001), we get a palindrome (2244334422).

The spelling of 1002032421 in words is "one billion, two million, thirty-two thousand, four hundred twenty-one".