73727540 has 24 divisors (see below), whose sum is σ = 156791040. Its totient is φ = 29117088.

The previous prime is 73727539. The next prime is 73727561. The reversal of 73727540 is 4572737.

It is a self number, because there is not a number n which added to its sum of digits gives 73727540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21752 + ... + 24911.

It is an arithmetic number, because the mean of its divisors is an integer number (6532960).

Almost surely, 2^73727540 is an apocalyptic number.

It is an amenable number.

73727540 is an abundant number, since it is smaller than the sum of its proper divisors (83063500).

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

73727540 is a wasteful number, since it uses less digits than its factorization.

73727540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46751 (or 46749 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 73727540 is about 8586.4742473264. The cubic root of 73727540 is about 419.3177510078.

The spelling of 73727540 in words is "seventy-three million, seven hundred twenty-seven thousand, five hundred forty".