16218741 has 32 divisors (see below), whose sum is σ = 27426816. Its totient is φ = 8280000.

The previous prime is 16218733. The next prime is 16218751. The reversal of 16218741 is 14781261.

It is not a de Polignac number, because 16218741 - 2³ = 16218733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16218699 and 16218708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16218701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13516 + ... + 14666.

It is an arithmetic number, because the mean of its divisors is an integer number (857088).

Almost surely, 2^16218741 is an apocalyptic number.

16218741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16218741 is a deficient number, since it is larger than the sum of its proper divisors (11208075).

16218741 is a wasteful number, since it uses less digits than its factorization.

16218741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its digits is 2688, while the sum is 30.

The square root of 16218741 is about 4027.2498060091. The cubic root of 16218741 is about 253.1273346531.

The spelling of 16218741 in words is "sixteen million, two hundred eighteen thousand, seven hundred forty-one".