402366 has 8 divisors (see below), whose sum is σ = 804744. Its totient is φ = 134120.

The previous prime is 402361. The next prime is 402371. The reversal of 402366 is 663204.

It is an interprime number because it is at equal distance from previous prime (402361) and next prime (402371).

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

402366 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402361) by changing a digit.

402366 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 33525 + ... + 33536.

It is an arithmetic number, because the mean of its divisors is an integer number (100593).

2⁴⁰²³⁶⁶ is an apocalyptic number.

402366 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.

402366 is a wasteful number, since it uses less digits than its factorization.

402366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67066.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 402366 is about 634.3232614369. The cubic root of 402366 is about 73.8256181213.

The spelling of 402366 in words is "four hundred two thousand, three hundred sixty-six".