16342218 has 24 divisors (see below), whose sum is σ = 35896068. Its totient is φ = 5372352.

The previous prime is 16342199. The next prime is 16342237. The reversal of 16342218 is 81224361.

16342218 is a `hidden beast` number, since 1 + 634 + 2 + 21 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (16342199) and next prime (16342237).

It can be written as a sum of positive squares in 2 ways, for example, as 15233409 + 1108809 = 3903^2 + 1053^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16342191 and 16342200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4905 + ... + 7532.

Almost surely, 2^16342218 is an apocalyptic number.

16342218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16342218 is an abundant number, since it is smaller than the sum of its proper divisors (19553850).

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

16342218 is a wasteful number, since it uses less digits than its factorization.

16342218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518 (or 12515 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 16342218 is about 4042.5509273230. The cubic root of 16342218 is about 253.7680835147.

Adding to 16342218 its reverse (81224361), we get a palindrome (97566579).

The spelling of 16342218 in words is "sixteen million, three hundred forty-two thousand, two hundred eighteen".