1002323144 has 16 divisors (see below), whose sum is σ = 1885403520. Its totient is φ = 499548880.

The previous prime is 1002323123. The next prime is 1002323167. The reversal of 1002323144 is 4413232001.

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, 198944 + ... + 203919.

It is an arithmetic number, because the mean of its divisors is an integer number (117837720).

Almost surely, 2^1002323144 is an apocalyptic number.

It is an amenable number.

1002323144 is a deficient number, since it is larger than the sum of its proper divisors (883080376).

1002323144 is a wasteful number, since it uses less digits than its factorization.

1002323144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403180 (or 403176 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1002323144 is about 31659.4874247831. The cubic root of 1002323144 is about 1000.7737824396.

Adding to 1002323144 its reverse (4413232001), we get a palindrome (5415555145).

The spelling of 1002323144 in words is "one billion, two million, three hundred twenty-three thousand, one hundred forty-four".