164259240 has 32 divisors (see below), whose sum is σ = 492778080. Its totient is φ = 43802432.

The previous prime is 164259217. The next prime is 164259247. The reversal of 164259240 is 42952461.

It is not an unprimeable number, because it can be changed into a prime (164259247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684294 + ... + 684533.

It is an arithmetic number, because the mean of its divisors is an integer number (15399315).

Almost surely, 2^164259240 is an apocalyptic number.

164259240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164259240 is an abundant number, since it is smaller than the sum of its proper divisors (328518840).

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

164259240 is a wasteful number, since it uses less digits than its factorization.

164259240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368841 (or 1368837 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 164259240 is about 12816.3660996399. The cubic root of 164259240 is about 547.6586308760.

The spelling of 164259240 in words is "one hundred sixty-four million, two hundred fifty-nine thousand, two hundred forty".