164441434 has 4 divisors (see below), whose sum is σ = 246662154. Its totient is φ = 82220716.

The previous prime is 164441419. The next prime is 164441443. The reversal of 164441434 is 434144461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 434144461 = 5381 ⋅80681.

It can be written as a sum of positive squares in only one way, i.e., 89359209 + 75082225 = 9453^2 + 8665^2 .

It is a super-3 number, since 3×164441434³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 164441396 and 164441405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41110357 + ... + 41110360.

Almost surely, 2^164441434 is an apocalyptic number.

164441434 is a deficient number, since it is larger than the sum of its proper divisors (82220720).

164441434 is an equidigital number, since it uses as much as digits as its factorization.

164441434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82220719.

The product of its digits is 18432, while the sum is 31.

The square root of 164441434 is about 12823.4719947446. The cubic root of 164441434 is about 547.8610410981.

Adding to 164441434 its reverse (434144461), we get a palindrome (598585895).

The spelling of 164441434 in words is "one hundred sixty-four million, four hundred forty-one thousand, four hundred thirty-four".