73440336 has 40 divisors (see below), whose sum is σ = 192328960. Its totient is φ = 24143616.

The previous prime is 73440319. The next prime is 73440337. The reversal of 73440336 is 63304437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73440337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6976 + ... + 13983.

It is an arithmetic number, because the mean of its divisors is an integer number (4808224).

Almost surely, 2^73440336 is an apocalyptic number.

It is an amenable number.

73440336 is an abundant number, since it is smaller than the sum of its proper divisors (118888624).

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

73440336 is a wasteful number, since it uses less digits than its factorization.

73440336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21043 (or 21037 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 30.

The square root of 73440336 is about 8569.7337181502. The cubic root of 73440336 is about 418.7725614636.

The spelling of 73440336 in words is "seventy-three million, four hundred forty thousand, three hundred thirty-six".