1002642 has 8 divisors (see below), whose sum is σ = 2005296. Its totient is φ = 334212.

The previous prime is 1002623. The next prime is 1002647. The reversal of 1002642 is 2462001.

1002642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

1002642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1002647) 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, 83548 + ... + 83559.

It is an arithmetic number, because the mean of its divisors is an integer number (250662).

2^1002642 is an apocalyptic number.

1002642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1002642 is a wasteful number, since it uses less digits than its factorization.

1002642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167112.

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

The square root of 1002642 is about 1001.3201286302. The cubic root of 1002642 is about 100.0879892229.

Adding to 1002642 its reverse (2462001), we get a palindrome (3464643).

The spelling of 1002642 in words is "one million, two thousand, six hundred forty-two".