73271330 has 32 divisors (see below), whose sum is σ = 150139008. Its totient is φ = 25484800.

The previous prime is 73271329. The next prime is 73271339. The reversal of 73271330 is 3317237.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73271330.

It is not an unprimeable number, because it can be changed into a prime (73271339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11951 + ... + 17010.

It is an arithmetic number, because the mean of its divisors is an integer number (4691844).

Almost surely, 2^73271330 is an apocalyptic number.

73271330 is an abundant number, since it is smaller than the sum of its proper divisors (76867678).

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

73271330 is a wasteful number, since it uses less digits than its factorization.

73271330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29002.

The product of its (nonzero) digits is 2646, while the sum is 26.

The square root of 73271330 is about 8559.8674055151. The cubic root of 73271330 is about 418.4510785667.

Adding to 73271330 its reverse (3317237), we get a palindrome (76588567).

The spelling of 73271330 in words is "seventy-three million, two hundred seventy-one thousand, three hundred thirty".