130440452 has 12 divisors (see below), whose sum is σ = 238195776. Its totient is φ = 62384520.

The previous prime is 130440407. The next prime is 130440487. The reversal of 130440452 is 254044031.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708824 + ... + 709007.

It is an arithmetic number, because the mean of its divisors is an integer number (19849648).

Almost surely, 2^130440452 is an apocalyptic number.

It is an amenable number.

130440452 is a deficient number, since it is larger than the sum of its proper divisors (107755324).

130440452 is a wasteful number, since it uses less digits than its factorization.

130440452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417858 (or 1417856 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 130440452 is about 11421.0530162503. The cubic root of 130440452 is about 507.1511699301.

Adding to 130440452 its reverse (254044031), we get a palindrome (384484483).

The spelling of 130440452 in words is "one hundred thirty million, four hundred forty thousand, four hundred fifty-two".