18029416 has 16 divisors (see below), whose sum is σ = 34971300. Its totient is φ = 8703744.

The previous prime is 18029413. The next prime is 18029419. The reversal of 18029416 is 61492081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18029413) and next prime (18029419).

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 900 = 4246^2 + 30^2 .

It is not an unprimeable number, because it can be changed into a prime (18029413) 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 in 3 ways as a sum of consecutive naturals, for example, 38625 + ... + 39088.

Almost surely, 2^18029416 is an apocalyptic number.

It is an amenable number.

18029416 is a deficient number, since it is larger than the sum of its proper divisors (16941884).

18029416 is a wasteful number, since it uses less digits than its factorization.

18029416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77748 (or 77744 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18029416 is about 4246.1059807782. The cubic root of 18029416 is about 262.2168241837.

The spelling of 18029416 in words is "eighteen million, twenty-nine thousand, four hundred sixteen".