73731340 has 24 divisors (see below), whose sum is σ = 160176240. Its totient is φ = 28475328.

The previous prime is 73731331. The next prime is 73731377. The reversal of 73731340 is 4313737.

It is a junction number, because it is equal to n+sod(n) for n = 73731299 and 73731308.

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, 62982 + ... + 64141.

It is an arithmetic number, because the mean of its divisors is an integer number (6674010).

Almost surely, 2^73731340 is an apocalyptic number.

It is an amenable number.

73731340 is an abundant number, since it is smaller than the sum of its proper divisors (86444900).

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

73731340 is a wasteful number, since it uses less digits than its factorization.

73731340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127161 (or 127159 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 73731340 is about 8586.6955227258. The cubic root of 73731340 is about 419.3249549195.

The spelling of 73731340 in words is "seventy-three million, seven hundred thirty-one thousand, three hundred forty".