164426944 has 56 divisors (see below), whose sum is σ = 357566976. Its totient is φ = 74400000.

The previous prime is 164426939. The next prime is 164426947. The reversal of 164426944 is 449624461.

It is a super-3 number, since 3×164426944³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164426897 and 164426906.

It is not an unprimeable number, because it can be changed into a prime (164426947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218569 + ... + 219319.

Almost surely, 2^164426944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 164426944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178783488).

164426944 is an abundant number, since it is smaller than the sum of its proper divisors (193140032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164426944 is a wasteful number, since it uses less digits than its factorization.

164426944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1075 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 164426944 is about 12822.9070027042. The cubic root of 164426944 is about 547.8449487636.

The spelling of 164426944 in words is "one hundred sixty-four million, four hundred twenty-six thousand, nine hundred forty-four".