16218468 has 60 divisors (see below), whose sum is σ = 48461952. Its totient is φ = 4633200.

The previous prime is 16218409. The next prime is 16218481. The reversal of 16218468 is 86481261.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1308 + ... + 5843.

Almost surely, 2^16218468 is an apocalyptic number.

16218468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16218468 is an abundant number, since it is smaller than the sum of its proper divisors (32243484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16218468 is a wasteful number, since it uses less digits than its factorization.

16218468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7174 (or 7163 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 16218468 is about 4027.2159117683. The cubic root of 16218468 is about 253.1259144000.

The spelling of 16218468 in words is "sixteen million, two hundred eighteen thousand, four hundred sixty-eight".