164434442 has 8 divisors (see below), whose sum is σ = 249423300. Its totient is φ = 81293344.

The previous prime is 164434441. The next prime is 164434483. The reversal of 164434442 is 244434461.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 152744881 + 11689561 = 12359^2 + 3419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×164434442³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164434399 and 164434408.

It is not an unprimeable number, because it can be changed into a prime (164434441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461717 + ... + 462072.

Almost surely, 2^164434442 is an apocalyptic number.

164434442 is a deficient number, since it is larger than the sum of its proper divisors (84988858).

164434442 is an equidigital number, since it uses as much as digits as its factorization.

164434442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923880.

The product of its digits is 36864, while the sum is 32.

The square root of 164434442 is about 12823.1993667727. The cubic root of 164434442 is about 547.8532760261.

The spelling of 164434442 in words is "one hundred sixty-four million, four hundred thirty-four thousand, four hundred forty-two".