164469238 has 16 divisors (see below), whose sum is σ = 252806400. Its totient is φ = 80206056.

The previous prime is 164469233. The next prime is 164469247. The reversal of 164469238 is 832964461.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 164469194 and 164469203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164469233) 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, 116863 + ... + 118261.

It is an arithmetic number, because the mean of its divisors is an integer number (15800400).

Almost surely, 2^164469238 is an apocalyptic number.

164469238 is a deficient number, since it is larger than the sum of its proper divisors (88337162).

164469238 is a wasteful number, since it uses less digits than its factorization.

164469238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its digits is 248832, while the sum is 43.

The square root of 164469238 is about 12824.5560546944. The cubic root of 164469238 is about 547.8919170754.

The spelling of 164469238 in words is "one hundred sixty-four million, four hundred sixty-nine thousand, two hundred thirty-eight".