73381860 has 72 divisors (see below), whose sum is σ = 235695096. Its totient is φ = 18416640.

The previous prime is 73381829. The next prime is 73381873. The reversal of 73381860 is 6818337.

It can be written as a sum of positive squares in 4 ways, for example, as 484416 + 72897444 = 696^2 + 8538^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8931 + ... + 15050.

It is an arithmetic number, because the mean of its divisors is an integer number (3273543).

Almost surely, 2^73381860 is an apocalyptic number.

It is an amenable number.

73381860 is an abundant number, since it is smaller than the sum of its proper divisors (162313236).

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

73381860 is a wasteful number, since it uses less digits than its factorization.

73381860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24013 (or 24008 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 73381860 is about 8566.3212641133. The cubic root of 73381860 is about 418.6613843821.

The spelling of 73381860 in words is "seventy-three million, three hundred eighty-one thousand, eight hundred sixty".