1002442403 has 4 divisors (see below), whose sum is σ = 1003173888. Its totient is φ = 1001710920.

The previous prime is 1002442393. The next prime is 1002442411. The reversal of 1002442403 is 3042442001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3042442001 = 23 ⋅132280087.

It is a cyclic number.

It is not a de Polignac number, because 1002442403 - 2¹⁰ = 1002441379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002402403) 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, 363683 + ... + 366428.

It is an arithmetic number, because the mean of its divisors is an integer number (250793472).

Almost surely, 2^1002442403 is an apocalyptic number.

1002442403 is a deficient number, since it is larger than the sum of its proper divisors (731485).

1002442403 is an equidigital number, since it uses as much as digits as its factorization.

1002442403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731484.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1002442403 is about 31661.3708326093. The cubic root of 1002442403 is about 1000.8134724165.

Adding to 1002442403 its reverse (3042442001), we get a palindrome (4044884404).

The spelling of 1002442403 in words is "one billion, two million, four hundred forty-two thousand, four hundred three".