164453436 has 144 divisors (see below), whose sum is σ = 517753600. Its totient is φ = 44097696.

The previous prime is 164453413. The next prime is 164453437. The reversal of 164453436 is 634354461.

164453436 is a `hidden beast` number, since 1 + 644 + 5 + 3 + 4 + 3 + 6 = 666.

It is a super-2 number, since 2×164453436² = 54089865224412192, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 164453436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164453437) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1536895 + ... + 1537001.

Almost surely, 2^164453436 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 164453436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258876800).

164453436 is an abundant number, since it is smaller than the sum of its proper divisors (353300164).

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

164453436 is a wasteful number, since it uses less digits than its factorization.

164453436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 138 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 164453436 is about 12823.9399561913. The cubic root of 164453436 is about 547.8743695885.

It can be divided in two parts, 16445 and 3436, that added together give a square (19881 = 141²).

The spelling of 164453436 in words is "one hundred sixty-four million, four hundred fifty-three thousand, four hundred thirty-six".