16400136 has 32 divisors (see below), whose sum is σ = 41499360. Its totient is φ = 5400192.

The previous prime is 16400101. The next prime is 16400141. The reversal of 16400136 is 63100461.

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, 2125 + ... + 6108.

It is an arithmetic number, because the mean of its divisors is an integer number (1296855).

Almost surely, 2^16400136 is an apocalyptic number.

It is an amenable number.

16400136 is an abundant number, since it is smaller than the sum of its proper divisors (25099224).

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

16400136 is a wasteful number, since it uses less digits than its factorization.

16400136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 16400136 is about 4049.7081376316. The cubic root of 16400136 is about 254.0675208511.

Adding to 16400136 its reverse (63100461), we get a palindrome (79500597).

The spelling of 16400136 in words is "sixteen million, four hundred thousand, one hundred thirty-six".