918416 has 20 divisors (see below), whose sum is σ = 1810524. Its totient is φ = 451200.

The previous prime is 918397. The next prime is 918431. The reversal of 918416 is 614819.

It can be written as a sum of positive squares in 2 ways, for example, as 246016 + 672400 = 496^2 + 820^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506 + ... + 1446.

2⁹¹⁸⁴¹⁶ is an apocalyptic number.

It is an amenable number.

918416 is a deficient number, since it is larger than the sum of its proper divisors (892108).

918416 is a wasteful number, since it uses less digits than its factorization.

918416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010 (or 1004 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 918416 is about 958.3402318592. The cubic root of 918416 is about 97.2030324151.

The spelling of 918416 in words is "nine hundred eighteen thousand, four hundred sixteen".