73073680 has 20 divisors (see below), whose sum is σ = 169896492. Its totient is φ = 29229440.

The previous prime is 73073653. The next prime is 73073699. The reversal of 73073680 is 8637037.

It can be written as a sum of positive squares in 2 ways, for example, as 13660416 + 59413264 = 3696^2 + 7708^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456631 + ... + 456790.

Almost surely, 2^73073680 is an apocalyptic number.

It is an amenable number.

73073680 is an abundant number, since it is smaller than the sum of its proper divisors (96822812).

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

73073680 is a wasteful number, since it uses less digits than its factorization.

73073680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913434 (or 913428 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 73073680 is about 8548.3144537388. The cubic root of 73073680 is about 418.0744813593.

The spelling of 73073680 in words is "seventy-three million, seventy-three thousand, six hundred eighty".