130507440 has 160 divisors (see below), whose sum is σ = 466684416. Its totient is φ = 29552640.

The previous prime is 130507439. The next prime is 130507441. The reversal of 130507440 is 44705031.

It is an interprime number because it is at equal distance from previous prime (130507439) and next prime (130507441).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 130507440.

It is not an unprimeable number, because it can be changed into a prime (130507441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219784 + ... + 220376.

Almost surely, 2^130507440 is an apocalyptic number.

130507440 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 130507440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233342208).

130507440 is an abundant number, since it is smaller than the sum of its proper divisors (336176976).

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

130507440 is a wasteful number, since it uses less digits than its factorization.

130507440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 130507440 is about 11423.9852941082. The cubic root of 130507440 is about 507.2379712970.

The spelling of 130507440 in words is "one hundred thirty million, five hundred seven thousand, four hundred forty".