164422538 has 64 divisors (see below), whose sum is σ = 318297600. Its totient is φ = 63334656.

The previous prime is 164422537. The next prime is 164422553. The reversal of 164422538 is 835224461.

164422538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164422538³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 164422498 and 164422507.

It is not an unprimeable number, because it can be changed into a prime (164422537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267920 + ... + 268532.

It is an arithmetic number, because the mean of its divisors is an integer number (4973400).

Almost surely, 2^164422538 is an apocalyptic number.

164422538 is a deficient number, since it is larger than the sum of its proper divisors (153875062).

164422538 is a wasteful number, since it uses less digits than its factorization.

164422538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 662 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 164422538 is about 12822.7351996366. The cubic root of 164422538 is about 547.8400553515.

Adding to 164422538 its reverse (835224461), we get a palindrome (999646999).

The spelling of 164422538 in words is "one hundred sixty-four million, four hundred twenty-two thousand, five hundred thirty-eight".