73268645 has 8 divisors (see below), whose sum is σ = 90954360. Its totient is φ = 56593600.

The previous prime is 73268641. The next prime is 73268647. The reversal of 73268645 is 54686237.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6666724 + 66601921 = 2582^2 + 8161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73268645 - 2² = 73268641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73268641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252506 + ... + 252795.

It is an arithmetic number, because the mean of its divisors is an integer number (11369295).

Almost surely, 2^73268645 is an apocalyptic number.

It is an amenable number.

73268645 is a deficient number, since it is larger than the sum of its proper divisors (17685715).

73268645 is a wasteful number, since it uses less digits than its factorization.

73268645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505335.

The product of its digits is 241920, while the sum is 41.

The square root of 73268645 is about 8559.7105675367. The cubic root of 73268645 is about 418.4459671775.

The spelling of 73268645 in words is "seventy-three million, two hundred sixty-eight thousand, six hundred forty-five".