1002224639 has 16 divisors (see below), whose sum is σ = 1095161760. Its totient is φ = 911623680.

The previous prime is 1002224593. The next prime is 1002224687. The reversal of 1002224639 is 9364222001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002224639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002224039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381659 + ... + 384275.

It is an arithmetic number, because the mean of its divisors is an integer number (68447610).

Almost surely, 2^1002224639 is an apocalyptic number.

1002224639 is a deficient number, since it is larger than the sum of its proper divisors (92937121).

1002224639 is a wasteful number, since it uses less digits than its factorization.

1002224639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1002224639 is about 31657.9316917578. The cubic root of 1002224639 is about 1000.7409971210.

The spelling of 1002224639 in words is "one billion, two million, two hundred twenty-four thousand, six hundred thirty-nine".