1916018 has 8 divisors (see below), whose sum is σ = 3095148. Its totient is φ = 884304.

The previous prime is 1915997. The next prime is 1916021. The reversal of 1916018 is 8106191.

It can be written as a sum of positive squares in 2 ways, for example, as 1776889 + 139129 = 1333^2 + 373^2 .

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

It is a super-2 number, since 2×1916018² = 7342249952648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 73693 = 1916018 / (1 + 9 + 1 + 6 + 0 + 1 + 8).

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, 36821 + ... + 36872.

2^1916018 is an apocalyptic number.

1916018 is a deficient number, since it is larger than the sum of its proper divisors (1179130).

1916018 is a wasteful number, since it uses less digits than its factorization.

1916018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73708.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 1916018 is about 1384.2030197915. The cubic root of 1916018 is about 124.2033171590.

The spelling of 1916018 in words is "one million, nine hundred sixteen thousand, eighteen".