440342532 has 72 divisors (see below), whose sum is σ = 1301716416. Its totient is φ = 122883264.

The previous prime is 440342519. The next prime is 440342533. The reversal of 440342532 is 235243044.

440342532 is a `hidden beast` number, since 4 + 403 + 4 + 253 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 440342496 and 440342505.

It is not an unprimeable number, because it can be changed into a prime (440342533) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9483 + ... + 31154.

Almost surely, 2^440342532 is an apocalyptic number.

440342532 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

440342532 is an abundant number, since it is smaller than the sum of its proper divisors (861373884).

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

440342532 is a wasteful number, since it uses less digits than its factorization.

440342532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40697 (or 40692 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 440342532 is about 20984.3401611773. The cubic root of 440342532 is about 760.7878095815.

Adding to 440342532 its reverse (235243044), we get a palindrome (675585576).

The spelling of 440342532 in words is "four hundred forty million, three hundred forty-two thousand, five hundred thirty-two".