918406 has 8 divisors (see below), whose sum is σ = 1422144. Its totient is φ = 444360.

The previous prime is 918397. The next prime is 918431. The reversal of 918406 is 604819.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7345 + ... + 7468.

It is an arithmetic number, because the mean of its divisors is an integer number (177768).

2⁹¹⁸⁴⁰⁶ is an apocalyptic number.

918406 is a deficient number, since it is larger than the sum of its proper divisors (503738).

918406 is a wasteful number, since it uses less digits than its factorization.

918406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14846.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 918406 is about 958.3350144913. The cubic root of 918406 is about 97.2026796215.

The spelling of 918406 in words is "nine hundred eighteen thousand, four hundred six".