162019858 has 32 divisors (see below), whose sum is σ = 326309760. Its totient is φ = 58268160.

The previous prime is 162019849. The next prime is 162019873. The reversal of 162019858 is 858910261.

It is a self number, because there is not a number n which added to its sum of digits gives 162019858.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38463 + ... + 42466.

It is an arithmetic number, because the mean of its divisors is an integer number (10197180).

Almost surely, 2^162019858 is an apocalyptic number.

162019858 is an abundant number, since it is smaller than the sum of its proper divisors (164289902).

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

162019858 is a wasteful number, since it uses less digits than its factorization.

162019858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80962.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 162019858 is about 12728.7021333677. The cubic root of 162019858 is about 545.1584512487.

The spelling of 162019858 in words is "one hundred sixty-two million, nineteen thousand, eight hundred fifty-eight".