16138422 has 24 divisors (see below), whose sum is σ = 35043840. Its totient is φ = 5367600.

The previous prime is 16138403. The next prime is 16138477. The reversal of 16138422 is 22483161.

16138422 is a `hidden beast` number, since 1 + 613 + 8 + 42 + 2 = 666.

16138422 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 11979 + ... + 13257.

It is an arithmetic number, because the mean of its divisors is an integer number (1460160).

Almost surely, 2^16138422 is an apocalyptic number.

16138422 is an abundant number, since it is smaller than the sum of its proper divisors (18905418).

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

16138422 is a wasteful number, since it uses less digits than its factorization.

16138422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988 (or 1985 counting only the distinct ones).

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

The square root of 16138422 is about 4017.2654878661. The cubic root of 16138422 is about 252.7087943933.

It can be divided in two parts, 161 and 38422, that added together give a palindrome (38583).

The spelling of 16138422 in words is "sixteen million, one hundred thirty-eight thousand, four hundred twenty-two".