162044890 has 32 divisors (see below), whose sum is σ = 347846400. Its totient is φ = 53142144.

The previous prime is 162044849. The next prime is 162044891. The reversal of 162044890 is 98440261.

It is a super-2 number, since 2×162044890² = 52517092750224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (162044891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48715 + ... + 51934.

It is an arithmetic number, because the mean of its divisors is an integer number (10870200).

Almost surely, 2^162044890 is an apocalyptic number.

162044890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162044890 is an abundant number, since it is smaller than the sum of its proper divisors (185801510).

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

162044890 is a wasteful number, since it uses less digits than its factorization.

162044890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100686.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 162044890 is about 12729.6853849575. The cubic root of 162044890 is about 545.1865253868.

The spelling of 162044890 in words is "one hundred sixty-two million, forty-four thousand, eight hundred ninety".