58781660 has 48 divisors (see below), whose sum is σ = 141656256. Its totient is φ = 20070912.

The previous prime is 58781633. The next prime is 58781663. The reversal of 58781660 is 6618785.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58781663) 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, 40304 + ... + 41736.

It is an arithmetic number, because the mean of its divisors is an integer number (2951172).

Almost surely, 2^58781660 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 58781660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70828128).

58781660 is an abundant number, since it is smaller than the sum of its proper divisors (82874596).

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

58781660 is a wasteful number, since it uses less digits than its factorization.

58781660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 58781660 is about 7666.9198508919. The cubic root of 58781660 is about 388.8188237794.

The spelling of 58781660 in words is "fifty-eight million, seven hundred eighty-one thousand, six hundred sixty".