1002642606 has 72 divisors (see below), whose sum is σ = 2542062744. Its totient is φ = 284770080.

The previous prime is 1002642569. The next prime is 1002642629. The reversal of 1002642606 is 6062462001.

It is a happy number.

1002642606 is a `hidden beast` number, since 10 + 0 + 2 + 6 + 42 + 606 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1002642606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 149301 + ... + 155871.

It is an arithmetic number, because the mean of its divisors is an integer number (35306427).

Almost surely, 2^1002642606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002642606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271031372).

1002642606 is an abundant number, since it is smaller than the sum of its proper divisors (1539420138).

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

1002642606 is a wasteful number, since it uses less digits than its factorization.

1002642606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766 (or 6756 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1002642606 is about 31664.5323035096. The cubic root of 1002642606 is about 1000.8800938742.

The spelling of 1002642606 in words is "one billion, two million, six hundred forty-two thousand, six hundred six".