130347640 has 16 divisors (see below), whose sum is σ = 293282280. Its totient is φ = 52139040.

The previous prime is 130347631. The next prime is 130347641. The reversal of 130347640 is 46743031.

It is a junction number, because it is equal to n+sod(n) for n = 130347599 and 130347608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130347641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1629306 + ... + 1629385.

Almost surely, 2^130347640 is an apocalyptic number.

130347640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130347640 is an abundant number, since it is smaller than the sum of its proper divisors (162934640).

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

130347640 is a wasteful number, since it uses less digits than its factorization.

130347640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258702 (or 3258698 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 130347640 is about 11416.9890952037. The cubic root of 130347640 is about 507.0308573485.

The spelling of 130347640 in words is "one hundred thirty million, three hundred forty-seven thousand, six hundred forty".