130430640 has 160 divisors (see below), whose sum is σ = 427401216. Its totient is φ = 32855040.

The previous prime is 130430639. The next prime is 130430683. The reversal of 130430640 is 46034031.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349494 + ... + 349866.

Almost surely, 2^130430640 is an apocalyptic number.

130430640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130430640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213700608).

130430640 is an abundant number, since it is smaller than the sum of its proper divisors (296970576).

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

130430640 is a wasteful number, since it uses less digits than its factorization.

130430640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 130430640 is about 11420.6234505827. The cubic root of 130430640 is about 507.1384532921.

Adding to 130430640 its reverse (46034031), we get a palindrome (176464671).

The spelling of 130430640 in words is "one hundred thirty million, four hundred thirty thousand, six hundred forty".