81060360 has 64 divisors (see below), whose sum is σ = 243967680. Its totient is φ = 21546240.

The previous prime is 81060347. The next prime is 81060367. The reversal of 81060360 is 6306018.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 81060360.

It is not an unprimeable number, because it can be changed into a prime (81060367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43855 + ... + 45665.

It is an arithmetic number, because the mean of its divisors is an integer number (3811995).

Almost surely, 2^81060360 is an apocalyptic number.

It is an amenable number.

81060360 is an abundant number, since it is smaller than the sum of its proper divisors (162907320).

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

81060360 is a wasteful number, since it uses less digits than its factorization.

81060360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2198 (or 2194 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 81060360 is about 9003.3527088524. The cubic root of 81060360 is about 432.7823187085.

Adding to 81060360 its reverse (6306018), we get a palindrome (87366378).

The spelling of 81060360 in words is "eighty-one million, sixty thousand, three hundred sixty".