440423141 has 4 divisors (see below), whose sum is σ = 447888000. Its totient is φ = 432958284.

The previous prime is 440423117. The next prime is 440423161. The reversal of 440423141 is 141324044.

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 not a de Polignac number, because 440423141 - 2¹⁰ = 440422117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440423101) 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, 3732341 + ... + 3732458.

It is an arithmetic number, because the mean of its divisors is an integer number (111972000).

Almost surely, 2^440423141 is an apocalyptic number.

It is an amenable number.

440423141 is a deficient number, since it is larger than the sum of its proper divisors (7464859).

440423141 is an equidigital number, since it uses as much as digits as its factorization.

440423141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7464858.

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

The square root of 440423141 is about 20986.2607674640. The cubic root of 440423141 is about 760.8342299614.

Adding to 440423141 its reverse (141324044), we get a palindrome (581747185).

The spelling of 440423141 in words is "four hundred forty million, four hundred twenty-three thousand, one hundred forty-one".