16156422 has 80 divisors (see below), whose sum is σ = 39639600. Its totient is φ = 4898880.

The previous prime is 16156379. The next prime is 16156423. The reversal of 16156422 is 22465161.

16156422 is a `hidden beast` number, since 1 + 6 + 15 + 642 + 2 = 666.

16156422 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 super-2 number, since 2×16156422² = 522059943684168, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16156423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 89172 + ... + 89352.

It is an arithmetic number, because the mean of its divisors is an integer number (495495).

Almost surely, 2^16156422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16156422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19819800).

16156422 is an abundant number, since it is smaller than the sum of its proper divisors (23483178).

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

16156422 is a wasteful number, since it uses less digits than its factorization.

16156422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 234 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 16156422 is about 4019.5051934287. The cubic root of 16156422 is about 252.8027124602.

The spelling of 16156422 in words is "sixteen million, one hundred fifty-six thousand, four hundred twenty-two".