164395370 has 16 divisors (see below), whose sum is σ = 296130600. Its totient is φ = 65709504.

The previous prime is 164395369. The next prime is 164395373. The reversal of 164395370 is 73593461.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 159542161 + 4853209 = 12631^2 + 2203^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164395373) 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, 10184 + ... + 20796.

Almost surely, 2^164395370 is an apocalyptic number.

164395370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164395370 is a deficient number, since it is larger than the sum of its proper divisors (131735230).

164395370 is a wasteful number, since it uses less digits than its factorization.

164395370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 164395370 is about 12821.6757875092. The cubic root of 164395370 is about 547.8098799699.

The spelling of 164395370 in words is "one hundred sixty-four million, three hundred ninety-five thousand, three hundred seventy".