81024760 has 32 divisors (see below), whose sum is σ = 182574000. Its totient is φ = 32362240.

The previous prime is 81024751. The next prime is 81024763. The reversal of 81024760 is 6742018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81024763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40995 + ... + 42925.

Almost surely, 2^81024760 is an apocalyptic number.

It is an amenable number.

81024760 is an abundant number, since it is smaller than the sum of its proper divisors (101549240).

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

81024760 is a wasteful number, since it uses less digits than its factorization.

81024760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991 (or 2987 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 81024760 is about 9001.3754504520. The cubic root of 81024760 is about 432.7189531433.

Adding to 81024760 its reverse (6742018), we get a palindrome (87766778).

The spelling of 81024760 in words is "eighty-one million, twenty-four thousand, seven hundred sixty".