440142134 has 8 divisors (see below), whose sum is σ = 676316088. Its totient is φ = 214703440.

The previous prime is 440142133. The next prime is 440142149. The reversal of 440142134 is 431241044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440142133) by changing a digit.

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, 2683712 + ... + 2683875.

It is an arithmetic number, because the mean of its divisors is an integer number (84539511).

Almost surely, 2^440142134 is an apocalyptic number.

440142134 is a deficient number, since it is larger than the sum of its proper divisors (236173954).

440142134 is a wasteful number, since it uses less digits than its factorization.

440142134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367630.

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

The square root of 440142134 is about 20979.5646761319. The cubic root of 440142134 is about 760.6723816451.

Adding to 440142134 its reverse (431241044), we get a palindrome (871383178).

The spelling of 440142134 in words is "four hundred forty million, one hundred forty-two thousand, one hundred thirty-four".