618416 has 10 divisors (see below), whose sum is σ = 1198212. Its totient is φ = 309200.

The previous prime is 618413. The next prime is 618421. The reversal of 618416 is 614816.

It is not an unprimeable number, because it can be changed into a prime (618413) by changing a digit.

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 as a sum of consecutive naturals, namely, 19310 + ... + 19341.

2⁶¹⁸⁴¹⁶ is an apocalyptic number.

It is an amenable number.

618416 is a deficient number, since it is larger than the sum of its proper divisors (579796).

618416 is a wasteful number, since it uses less digits than its factorization.

618416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38659 (or 38653 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 618416 is about 786.3943031330. The cubic root of 618416 is about 85.1975107092.

Subtracting from 618416 its reverse (614816), we obtain a square (3600 = 60²).

The spelling of 618416 in words is "six hundred eighteen thousand, four hundred sixteen".