73743660 has 72 divisors (see below), whose sum is σ = 224668080. Its totient is φ = 19579008.

The previous prime is 73743643. The next prime is 73743679. The reversal of 73743660 is 6634737.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 47659 + ... + 49181.

It is an arithmetic number, because the mean of its divisors is an integer number (3120390).

Almost surely, 2^73743660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73743660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112334040).

73743660 is an abundant number, since it is smaller than the sum of its proper divisors (150924420).

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

73743660 is a wasteful number, since it uses less digits than its factorization.

73743660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1802 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 73743660 is about 8587.4128816542. The cubic root of 73743660 is about 419.3483090578.

The spelling of 73743660 in words is "seventy-three million, seven hundred forty-three thousand, six hundred sixty".