18348016 has 20 divisors (see below), whose sum is σ = 35616024. Its totient is φ = 9156800.

The previous prime is 18347993. The next prime is 18348047. The reversal of 18348016 is 61084381.

It is a super-2 number, since 2×18348016² = 673299382272512, which contains 22 as substring.

It is a congruent number.

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, 14946 + ... + 16126.

Almost surely, 2^18348016 is an apocalyptic number.

18348016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18348016 is a deficient number, since it is larger than the sum of its proper divisors (17268008).

18348016 is a wasteful number, since it uses less digits than its factorization.

18348016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2154 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 18348016 is about 4283.4584158131. The cubic root of 18348016 is about 263.7523695721.

The spelling of 18348016 in words is "eighteen million, three hundred forty-eight thousand, sixteen".