164453472 has 36 divisors (see below), whose sum is σ = 467665380. Its totient is φ = 54817728.

The previous prime is 164453467. The next prime is 164453489. The reversal of 164453472 is 274354461.

164453472 is a `hidden beast` number, since 1 + 644 + 5 + 3 + 4 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 285222 + ... + 285797.

It is an arithmetic number, because the mean of its divisors is an integer number (12990705).

Almost surely, 2^164453472 is an apocalyptic number.

164453472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164453472 is an abundant number, since it is smaller than the sum of its proper divisors (303211908).

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

164453472 is a wasteful number, since it uses less digits than its factorization.

164453472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571035 (or 571024 counting only the distinct ones).

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

The square root of 164453472 is about 12823.9413598160. The cubic root of 164453472 is about 547.8744095664.

The spelling of 164453472 in words is "one hundred sixty-four million, four hundred fifty-three thousand, four hundred seventy-two".