16402118 has 16 divisors (see below), whose sum is σ = 25295760. Its totient is φ = 7973376.

The previous prime is 16402079. The next prime is 16402121. The reversal of 16402118 is 81120461.

It is a junction number, because it is equal to n+sod(n) for n = 16402093 and 16402102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10730 + ... + 12162.

It is an arithmetic number, because the mean of its divisors is an integer number (1580985).

Almost surely, 2^16402118 is an apocalyptic number.

16402118 is a deficient number, since it is larger than the sum of its proper divisors (8893642).

16402118 is a wasteful number, since it uses less digits than its factorization.

16402118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16402118 is about 4049.9528392316. The cubic root of 16402118 is about 254.0777553504.

Adding to 16402118 its reverse (81120461), we get a palindrome (97522579).

The spelling of 16402118 in words is "sixteen million, four hundred two thousand, one hundred eighteen".