130040032 has 48 divisors (see below), whose sum is σ = 262386432. Its totient is φ = 63423360.

The previous prime is 130040017. The next prime is 130040033. The reversal of 130040032 is 230040031.

It is a super-2 number, since 2×130040032² = 33820819845122048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130039994 and 130040021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130040033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280633 + ... + 281095.

It is an arithmetic number, because the mean of its divisors is an integer number (5466384).

Almost surely, 2^130040032 is an apocalyptic number.

It is an amenable number.

130040032 is an abundant number, since it is smaller than the sum of its proper divisors (132346400).

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

130040032 is a wasteful number, since it uses less digits than its factorization.

130040032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 130040032 is about 11403.5096351956. The cubic root of 130040032 is about 506.6316950316.

Adding to 130040032 its reverse (230040031), we get a palindrome (360080063).

Subtracting 130040032 from its reverse (230040031), we obtain a palindrome (99999999).

The spelling of 130040032 in words is "one hundred thirty million, forty thousand, thirty-two".