73680570 has 64 divisors (see below), whose sum is σ = 199463040. Its totient is φ = 19350144.

The previous prime is 73680553. The next prime is 73680577. The reversal of 73680570 is 7508637.

73680570 is a `hidden beast` number, since 7 + 3 + 6 + 80 + 570 = 666.

It is not an unprimeable number, because it can be changed into a prime (73680577) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16054 + ... + 20126.

It is an arithmetic number, because the mean of its divisors is an integer number (3116610).

Almost surely, 2^73680570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73680570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99731520).

73680570 is an abundant number, since it is smaller than the sum of its proper divisors (125782470).

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

73680570 is a wasteful number, since it uses less digits than its factorization.

73680570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156 (or 4150 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 73680570 is about 8583.7386959296. The cubic root of 73680570 is about 419.2286864207.

The spelling of 73680570 in words is "seventy-three million, six hundred eighty thousand, five hundred seventy".