164175240 has 32 divisors (see below), whose sum is σ = 492526080. Its totient is φ = 43780032.

The previous prime is 164175223. The next prime is 164175241. The reversal of 164175240 is 42571461.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 164175198 and 164175207.

It is not an unprimeable number, because it can be changed into a prime (164175241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683944 + ... + 684183.

It is an arithmetic number, because the mean of its divisors is an integer number (15391440).

Almost surely, 2^164175240 is an apocalyptic number.

164175240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164175240 is an abundant number, since it is smaller than the sum of its proper divisors (328350840).

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

164175240 is a wasteful number, since it uses less digits than its factorization.

164175240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368141 (or 1368137 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 164175240 is about 12813.0886206254. The cubic root of 164175240 is about 547.5652598342.

The spelling of 164175240 in words is "one hundred sixty-four million, one hundred seventy-five thousand, two hundred forty".