18426116 has 6 divisors (see below), whose sum is σ = 32245710. Its totient is φ = 9213056.

The previous prime is 18426101. The next prime is 18426127. The reversal of 18426116 is 61162481.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 7562500 = 3296^2 + 2750^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2303261 + ... + 2303268.

It is an arithmetic number, because the mean of its divisors is an integer number (5374285).

Almost surely, 2^18426116 is an apocalyptic number.

It is an amenable number.

18426116 is a deficient number, since it is larger than the sum of its proper divisors (13819594).

18426116 is a wasteful number, since it uses less digits than its factorization.

18426116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606533 (or 4606531 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 18426116 is about 4292.5652004367. The cubic root of 18426116 is about 264.1260685000.

Adding to 18426116 its reverse (61162481), we get a palindrome (79588597).

The spelling of 18426116 in words is "eighteen million, four hundred twenty-six thousand, one hundred sixteen".