130640608 has 48 divisors (see below), whose sum is σ = 297289440. Its totient is φ = 55351296.

The previous prime is 130640567. The next prime is 130640611. The reversal of 130640608 is 806046031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16660 + ... + 23212.

It is an arithmetic number, because the mean of its divisors is an integer number (6193530).

Almost surely, 2^130640608 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 130640608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148644720).

130640608 is an abundant number, since it is smaller than the sum of its proper divisors (166648832).

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

130640608 is an equidigital number, since it uses as much as digits as its factorization.

130640608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6659 (or 6651 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 130640608 is about 11429.8122469269. The cubic root of 130640608 is about 507.4104388698.

Adding to 130640608 its reverse (806046031), we get a palindrome (936686639).

It can be divided in two parts, 1306 and 40608, that added together give a palindrome (41914).

The spelling of 130640608 in words is "one hundred thirty million, six hundred forty thousand, six hundred eight".