1002402 has 32 divisors (see below), whose sum is σ = 2347200. Its totient is φ = 316224.

The previous prime is 1002377. The next prime is 1002403. The reversal of 1002402 is 2042001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1002403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538 + ... + 1514.

It is an arithmetic number, because the mean of its divisors is an integer number (73350).

2^1002402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1173600).

1002402 is an abundant number, since it is smaller than the sum of its proper divisors (1344798).

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

1002402 is a wasteful number, since it uses less digits than its factorization.

1002402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007 (or 1001 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1002402 is about 1001.2002796644. The cubic root of 1002402 is about 100.0800026454.

Adding to 1002402 its reverse (2042001), we get a palindrome (3044403).

The spelling of 1002402 in words is "one million, two thousand, four hundred two".