164229090 has 16 divisors (see below), whose sum is σ = 394149888. Its totient is φ = 43794416.

The previous prime is 164229077. The next prime is 164229097. The reversal of 164229090 is 90922461.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164229097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2737122 + ... + 2737181.

It is an arithmetic number, because the mean of its divisors is an integer number (24634368).

Almost surely, 2^164229090 is an apocalyptic number.

164229090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164229090 is an abundant number, since it is smaller than the sum of its proper divisors (229920798).

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

164229090 is a wasteful number, since it uses less digits than its factorization.

164229090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474313.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 164229090 is about 12815.1898152154. The cubic root of 164229090 is about 547.6251210044.

The spelling of 164229090 in words is "one hundred sixty-four million, two hundred twenty-nine thousand, ninety".