73278068 has 12 divisors (see below), whose sum is σ = 129559332. Its totient is φ = 36261120.

The previous prime is 73278067. The next prime is 73278071. The reversal of 73278068 is 86087237.

It can be written as a sum of positive squares in 2 ways, for example, as 36820624 + 36457444 = 6068^2 + 6038^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73278067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94043 + ... + 94818.

It is an arithmetic number, because the mean of its divisors is an integer number (10796611).

Almost surely, 2^73278068 is an apocalyptic number.

It is an amenable number.

73278068 is a deficient number, since it is larger than the sum of its proper divisors (56281264).

73278068 is a wasteful number, since it uses less digits than its factorization.

73278068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188962 (or 188960 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 73278068 is about 8560.2609773301. The cubic root of 73278068 is about 418.4639050340.

The spelling of 73278068 in words is "seventy-three million, two hundred seventy-eight thousand, sixty-eight".