402106 has 8 divisors (see below), whose sum is σ = 609120. Its totient is φ = 199068.

The previous prime is 402091. The next prime is 402107. The reversal of 402106 is 601204.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402107) 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, 726 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (76140).

2⁴⁰²¹⁰⁶ is an apocalyptic number.

402106 is a deficient number, since it is larger than the sum of its proper divisors (207014).

402106 is a wasteful number, since it uses less digits than its factorization.

402106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 402106 is about 634.1182854957. The cubic root of 402106 is about 73.8097132017.

The spelling of 402106 in words is "four hundred two thousand, one hundred six".