130032240 has 160 divisors (see below), whose sum is σ = 440971776. Its totient is φ = 31503360.

The previous prime is 130032233. The next prime is 130032241. The reversal of 130032240 is 42230031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130032241) 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, 221227 + ... + 221813.

Almost surely, 2^130032240 is an apocalyptic number.

130032240 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 130032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220485888).

130032240 is an abundant number, since it is smaller than the sum of its proper divisors (310939536).

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

130032240 is a wasteful number, since it uses less digits than its factorization.

130032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 130032240 is about 11403.1679808727. The cubic root of 130032240 is about 506.6215757041.

Adding to 130032240 its reverse (42230031), we get a palindrome (172262271).

The spelling of 130032240 in words is "one hundred thirty million, thirty-two thousand, two hundred forty".