73440700 has 36 divisors (see below), whose sum is σ = 167758360. Its totient is φ = 27829440.

The previous prime is 73440683. The next prime is 73440707. The reversal of 73440700 is 704437.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73440707) 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 11 ways as a sum of consecutive naturals, for example, 17427 + ... + 21226.

Almost surely, 2^73440700 is an apocalyptic number.

It is an amenable number.

73440700 is an abundant number, since it is smaller than the sum of its proper divisors (94317660).

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

73440700 is a wasteful number, since it uses less digits than its factorization.

73440700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38686 (or 38679 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 73440700 is about 8569.7549556566. The cubic root of 73440700 is about 418.7732533311.

The spelling of 73440700 in words is "seventy-three million, four hundred forty thousand, seven hundred".