130439232 has 336 divisors, whose sum is σ = 496409472. Its totient is φ = 31703040.

The previous prime is 130439213. The next prime is 130439251. The reversal of 130439232 is 232934031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (130439213) and next prime (130439251).

It is a tau number, because it is divible by the number of its divisors (336).

It is a junction number, because it is equal to n+sod(n) for n = 130439196 and 130439205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 753898 + ... + 754070.

Almost surely, 2^130439232 is an apocalyptic number.

130439232 is a gapful number since it is divisible by the number (12) 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 130439232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248204736).

130439232 is an abundant number, since it is smaller than the sum of its proper divisors (365970240).

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

130439232 is a wasteful number, since it uses less digits than its factorization.

130439232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 130439232 is about 11420.9996059890. Note that the first 3 decimals coincide. The cubic root of 130439232 is about 507.1495888093.

The spelling of 130439232 in words is "one hundred thirty million, four hundred thirty-nine thousand, two hundred thirty-two".