440131324 has 12 divisors (see below), whose sum is σ = 771214024. Its totient is φ = 219784464.

The previous prime is 440131319. The next prime is 440131337. The reversal of 440131324 is 423131044.

It is a junction number, because it is equal to n+sod(n) for n = 440131295 and 440131304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66759 + ... + 73054.

Almost surely, 2^440131324 is an apocalyptic number.

It is an amenable number.

440131324 is a deficient number, since it is larger than the sum of its proper divisors (331082700).

440131324 is a wasteful number, since it uses less digits than its factorization.

440131324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140604 (or 140602 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 440131324 is about 20979.3070428935. The cubic root of 440131324 is about 760.6661541600. Note that the first 3 decimals are identical.

Adding to 440131324 its reverse (423131044), we get a palindrome (863262368).

The spelling of 440131324 in words is "four hundred forty million, one hundred thirty-one thousand, three hundred twenty-four".