130658440 has 64 divisors (see below), whose sum is σ = 337608000. Its totient is φ = 45008640.

The previous prime is 130658419. The next prime is 130658441. The reversal of 130658440 is 44856031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (130658441) 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, 546 + ... + 16174.

It is an arithmetic number, because the mean of its divisors is an integer number (5275125).

Almost surely, 2^130658440 is an apocalyptic number.

130658440 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 130658440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168804000).

130658440 is an abundant number, since it is smaller than the sum of its proper divisors (206949560).

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

130658440 is a wasteful number, since it uses less digits than its factorization.

130658440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15670 (or 15666 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 130658440 is about 11430.5922856167. The cubic root of 130658440 is about 507.4335244209.

The spelling of 130658440 in words is "one hundred thirty million, six hundred fifty-eight thousand, four hundred forty".