73840312 has 32 divisors (see below), whose sum is σ = 170402400. Its totient is φ = 29211264.

The previous prime is 73840309. The next prime is 73840321. The reversal of 73840312 is 21304837.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

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, 49987 + ... + 51442.

It is an arithmetic number, because the mean of its divisors is an integer number (5325075).

Almost surely, 2^73840312 is an apocalyptic number.

It is an amenable number.

73840312 is an abundant number, since it is smaller than the sum of its proper divisors (96562088).

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

73840312 is a wasteful number, since it uses less digits than its factorization.

73840312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101455 (or 101451 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 73840312 is about 8593.0385778257. The cubic root of 73840312 is about 419.5314351210.

The spelling of 73840312 in words is "seventy-three million, eight hundred forty thousand, three hundred twelve".