164357244 has 72 divisors (see below), whose sum is σ = 425617920. Its totient is φ = 53461152.

The previous prime is 164357227. The next prime is 164357251. The reversal of 164357244 is 442753461.

164357244 is a `hidden beast` number, since 1 + 6 + 43 + 572 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 164357199 and 164357208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 473479 + ... + 473825.

It is an arithmetic number, because the mean of its divisors is an integer number (5911360).

Almost surely, 2^164357244 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 164357244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212808960).

164357244 is an abundant number, since it is smaller than the sum of its proper divisors (261260676).

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

164357244 is a wasteful number, since it uses less digits than its factorization.

164357244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 634 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 164357244 is about 12820.1889221649. The cubic root of 164357244 is about 547.7675279777.

The spelling of 164357244 in words is "one hundred sixty-four million, three hundred fifty-seven thousand, two hundred forty-four".