73443132 has 96 divisors (see below), whose sum is σ = 229107200. Its totient is φ = 19875456.

The previous prime is 73443127. The next prime is 73443133. The reversal of 73443132 is 23134437.

73443132 is a `hidden beast` number, since 7 + 344 + 313 + 2 = 666.

It is a super-3 number, since 3×73443132³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 73443096 and 73443105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73443133) 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, 11808 + ... + 16920.

Almost surely, 2^73443132 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 73443132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114553600).

73443132 is an abundant number, since it is smaller than the sum of its proper divisors (155664068).

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

73443132 is a wasteful number, since it uses less digits than its factorization.

73443132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5152 (or 5144 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 73443132 is about 8569.8968488541. The cubic root of 73443132 is about 418.7778758602. Note that the first 3 decimals are identical.

Adding to 73443132 its reverse (23134437), we get a palindrome (96577569).

The spelling of 73443132 in words is "seventy-three million, four hundred forty-three thousand, one hundred thirty-two".