440424113 has 4 divisors (see below), whose sum is σ = 440605680. Its totient is φ = 440242548.

The previous prime is 440424109. The next prime is 440424133. The reversal of 440424113 is 311424044.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440424113 - 2² = 440424109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440424133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87095 + ... + 92012.

It is an arithmetic number, because the mean of its divisors is an integer number (110151420).

Almost surely, 2^440424113 is an apocalyptic number.

It is an amenable number.

440424113 is a deficient number, since it is larger than the sum of its proper divisors (181567).

440424113 is a wasteful number, since it uses less digits than its factorization.

440424113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181566.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 440424113 is about 20986.2839254595. The cubic root of 440424113 is about 760.8347896734.

Adding to 440424113 its reverse (311424044), we get a palindrome (751848157).

The spelling of 440424113 in words is "four hundred forty million, four hundred twenty-four thousand, one hundred thirteen".