440442142 has 32 divisors (see below), whose sum is σ = 769938624. Its totient is φ = 185068800.

The previous prime is 440442133. The next prime is 440442151. The reversal of 440442142 is 241244044.

It is an interprime number because it is at equal distance from previous prime (440442133) and next prime (440442151).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 183792 + ... + 186172.

It is an arithmetic number, because the mean of its divisors is an integer number (24060582).

Almost surely, 2^440442142 is an apocalyptic number.

440442142 is a deficient number, since it is larger than the sum of its proper divisors (329496482).

440442142 is a wasteful number, since it uses less digits than its factorization.

440442142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644.

The product of its (nonzero) digits is 4096, while the sum is 25.

The square root of 440442142 is about 20986.7134635226. The cubic root of 440442142 is about 760.8451712600.

Adding to 440442142 its reverse (241244044), we get a palindrome (681686186).

The spelling of 440442142 in words is "four hundred forty million, four hundred forty-two thousand, one hundred forty-two".