73840740 has 48 divisors (see below), whose sum is σ = 207144000. Its totient is φ = 19653760.

The previous prime is 73840733. The next prime is 73840751. The reversal of 73840740 is 4704837.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48511 + ... + 50009.

It is an arithmetic number, because the mean of its divisors is an integer number (4315500).

Almost surely, 2^73840740 is an apocalyptic number.

It is an amenable number.

73840740 is an abundant number, since it is smaller than the sum of its proper divisors (133303260).

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

73840740 is a wasteful number, since it uses less digits than its factorization.

73840740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 73840740 is about 8593.0634816694. The cubic root of 73840740 is about 419.5322456950.

The spelling of 73840740 in words is "seventy-three million, eight hundred forty thousand, seven hundred forty".