73064440 has 16 divisors (see below), whose sum is σ = 164395080. Its totient is φ = 29225760.

The previous prime is 73064437. The next prime is 73064441. The reversal of 73064440 is 4446037.

It is a junction number, because it is equal to n+sod(n) for n = 73064399 and 73064408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73064441) 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 3 ways as a sum of consecutive naturals, for example, 913266 + ... + 913345.

Almost surely, 2^73064440 is an apocalyptic number.

It is an amenable number.

73064440 is an abundant number, since it is smaller than the sum of its proper divisors (91330640).

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

73064440 is a wasteful number, since it uses less digits than its factorization.

73064440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826622 (or 1826618 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 73064440 is about 8547.7739792299. The cubic root of 73064440 is about 418.0568590953.

The spelling of 73064440 in words is "seventy-three million, sixty-four thousand, four hundred forty".