130032450 has 72 divisors (see below), whose sum is σ = 352936116. Its totient is φ = 34320000.

The previous prime is 130032431. The next prime is 130032457. The reversal of 130032450 is 54230031.

It can be written as a sum of positive squares in 6 ways, for example, as 88003161 + 42029289 = 9381^2 + 6483^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (130032457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 44020 + ... + 46880.

Almost surely, 2^130032450 is an apocalyptic number.

130032450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130032450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176468058).

130032450 is an abundant number, since it is smaller than the sum of its proper divisors (222903666).

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

130032450 is a wasteful number, since it uses less digits than its factorization.

130032450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980 (or 2972 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 130032450 is about 11403.1771888365. The cubic root of 130032450 is about 506.6218484325.

Adding to 130032450 its reverse (54230031), we get a palindrome (184262481).

The spelling of 130032450 in words is "one hundred thirty million, thirty-two thousand, four hundred fifty".