16158042 has 24 divisors (see below), whose sum is σ = 36306816. Its totient is φ = 5385852.

The previous prime is 16158031. The next prime is 16158049. The reversal of 16158042 is 24085161.

16158042 is a `hidden beast` number, since 1 + 615 + 8 + 0 + 42 = 666.

It is a super-2 number, since 2×16158042² = 522164642547528, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 16157997 and 16158015.

It is not an unprimeable number, because it can be changed into a prime (16158049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16138 + ... + 17109.

It is an arithmetic number, because the mean of its divisors is an integer number (1512784).

Almost surely, 2^16158042 is an apocalyptic number.

16158042 is an abundant number, since it is smaller than the sum of its proper divisors (20148774).

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

16158042 is an equidigital number, since it uses as much as digits as its factorization.

16158042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33264 (or 33252 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 16158042 is about 4019.7067057187. The cubic root of 16158042 is about 252.8111616640.

The spelling of 16158042 in words is "sixteen million, one hundred fifty-eight thousand, forty-two".