402802 has 4 divisors (see below), whose sum is σ = 604206. Its totient is φ = 201400.

The previous prime is 402797. The next prime is 402803. The reversal of 402802 is 208204.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 385641 + 17161 = 621^2 + 131^2 .

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (402803) by changing a digit.

402802 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100699 + ... + 100702.

2⁴⁰²⁸⁰² is an apocalyptic number.

402802 is a deficient number, since it is larger than the sum of its proper divisors (201404).

402802 is a wasteful number, since it uses less digits than its factorization.

402802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201403.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 402802 is about 634.6668417367. Note that the first 3 decimals coincide. The cubic root of 402802 is about 73.8522740765.

The spelling of 402802 in words is "four hundred two thousand, eight hundred two".