73111380 has 96 divisors (see below), whose sum is σ = 211849344. Its totient is φ = 18829824.

The previous prime is 73111343. The next prime is 73111387. The reversal of 73111380 is 8311137.

It is a self number, because there is not a number n which added to its sum of digits gives 73111380.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73111387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263802 + ... + 264078.

It is an arithmetic number, because the mean of its divisors is an integer number (2206764).

Almost surely, 2^73111380 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73111380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105924672).

73111380 is an abundant number, since it is smaller than the sum of its proper divisors (138737964).

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

73111380 is a wasteful number, since it uses less digits than its factorization.

73111380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 73111380 is about 8550.5192824764. The cubic root of 73111380 is about 418.1463663307.

The spelling of 73111380 in words is "seventy-three million, one hundred eleven thousand, three hundred eighty".