73531332 has 36 divisors (see below), whose sum is σ = 212424576. Its totient is φ = 21008880.

The previous prime is 73531331. The next prime is 73531343. The reversal of 73531332 is 23313537.

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

It is a junction number, because it is equal to n+sod(n) for n = 73531296 and 73531305.

It is not an unprimeable number, because it can be changed into a prime (73531331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145644 + ... + 146147.

Almost surely, 2^73531332 is an apocalyptic number.

It is an amenable number.

73531332 is an abundant number, since it is smaller than the sum of its proper divisors (138893244).

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

73531332 is a wasteful number, since it uses less digits than its factorization.

73531332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291808 (or 291803 counting only the distinct ones).

The product of its digits is 5670, while the sum is 27.

The square root of 73531332 is about 8575.0412243907. The cubic root of 73531332 is about 418.9454496531.

Adding to 73531332 its reverse (23313537), we get a palindrome (96844869).

The spelling of 73531332 in words is "seventy-three million, five hundred thirty-one thousand, three hundred thirty-two".