164267638 has 8 divisors (see below), whose sum is σ = 246669480. Its totient is φ = 82044480.

The previous prime is 164267627. The next prime is 164267639. The reversal of 164267638 is 836762461.

164267638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 164267594 and 164267603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164267639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42348 + ... + 46063.

It is an arithmetic number, because the mean of its divisors is an integer number (30833685).

Almost surely, 2^164267638 is an apocalyptic number.

164267638 is a deficient number, since it is larger than the sum of its proper divisors (82401842).

164267638 is an equidigital number, since it uses as much as digits as its factorization.

164267638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89342.

The product of its digits is 290304, while the sum is 43.

The square root of 164267638 is about 12816.6937234218. The cubic root of 164267638 is about 547.6679640065.

The spelling of 164267638 in words is "one hundred sixty-four million, two hundred sixty-seven thousand, six hundred thirty-eight".