402982 has 4 divisors (see below), whose sum is σ = 604476. Its totient is φ = 201490.

The previous prime is 402949. The next prime is 402991. The reversal of 402982 is 289204.

402982 is nontrivially palindromic in base 16.

402982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

402982 is an undulating number in base 16.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

402982 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, 100744 + ... + 100747.

It is an arithmetic number, because the mean of its divisors is an integer number (151119).

2⁴⁰²⁹⁸² is an apocalyptic number.

402982 is a deficient number, since it is larger than the sum of its proper divisors (201494).

402982 is a wasteful number, since it uses less digits than its factorization.

402982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201493.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 402982 is about 634.8086325815. The cubic root of 402982 is about 73.8632732189.

The spelling of 402982 in words is "four hundred two thousand, nine hundred eighty-two".