73288278 has 96 divisors (see below), whose sum is σ = 194088960. Its totient is φ = 19535040.

The previous prime is 73288273. The next prime is 73288291. The reversal of 73288278 is 87288237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73288273) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 112951 + ... + 113597.

It is an arithmetic number, because the mean of its divisors is an integer number (2021760).

Almost surely, 2^73288278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73288278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97044480).

73288278 is an abundant number, since it is smaller than the sum of its proper divisors (120800682).

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

73288278 is a wasteful number, since it uses less digits than its factorization.

73288278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 719 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 73288278 is about 8560.8573168813. The cubic root of 73288278 is about 418.4833393075.

The spelling of 73288278 in words is "seventy-three million, two hundred eighty-eight thousand, two hundred seventy-eight".