73158672 has 20 divisors (see below), whose sum is σ = 188993360. Its totient is φ = 24386208.

The previous prime is 73158671. The next prime is 73158689. The reversal of 73158672 is 27685137.

It is a self number, because there is not a number n which added to its sum of digits gives 73158672.

It is not an unprimeable number, because it can be changed into a prime (73158671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762022 + ... + 762117.

It is an arithmetic number, because the mean of its divisors is an integer number (9449668).

Almost surely, 2^73158672 is an apocalyptic number.

It is an amenable number.

73158672 is an abundant number, since it is smaller than the sum of its proper divisors (115834688).

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

73158672 is a wasteful number, since it uses less digits than its factorization.

73158672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524150 (or 1524144 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 73158672 is about 8553.2842814909. The cubic root of 73158672 is about 418.2365060403.

The spelling of 73158672 in words is "seventy-three million, one hundred fifty-eight thousand, six hundred seventy-two".