73381120 has 36 divisors (see below), whose sum is σ = 175773780. Its totient is φ = 29351936.

The previous prime is 73381117. The next prime is 73381151. The reversal of 73381120 is 2118337.

It can be written as a sum of positive squares in 2 ways, for example, as 12166144 + 61214976 = 3488^2 + 7824^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27385 + ... + 29944.

It is an arithmetic number, because the mean of its divisors is an integer number (4882605).

Almost surely, 2^73381120 is an apocalyptic number.

It is an amenable number.

73381120 is an abundant number, since it is smaller than the sum of its proper divisors (102392660).

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

73381120 is an equidigital number, since it uses as much as digits as its factorization.

73381120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57350 (or 57336 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 73381120 is about 8566.2780716015. The cubic root of 73381120 is about 418.6599770840.

Adding to 73381120 its reverse (2118337), we get a palindrome (75499457).

The spelling of 73381120 in words is "seventy-three million, three hundred eighty-one thousand, one hundred twenty".