73187340 has 24 divisors (see below), whose sum is σ = 204924720. Its totient is φ = 19516608.

The previous prime is 73187339. The next prime is 73187393. The reversal of 73187340 is 4378137.

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, 609835 + ... + 609954.

It is an arithmetic number, because the mean of its divisors is an integer number (8538530).

Almost surely, 2^73187340 is an apocalyptic number.

It is an amenable number.

73187340 is an abundant number, since it is smaller than the sum of its proper divisors (131737380).

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

73187340 is a wasteful number, since it uses less digits than its factorization.

73187340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219801 (or 1219799 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 73187340 is about 8554.9599648391. The cubic root of 73187340 is about 418.2911290400.

The spelling of 73187340 in words is "seventy-three million, one hundred eighty-seven thousand, three hundred forty".