440144342 has 8 divisors (see below), whose sum is σ = 720236232. Its totient is φ = 200065600.

The previous prime is 440144333. The next prime is 440144347. The reversal of 440144342 is 243441044.

It is a happy number.

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

It is a super-2 number, since 2×440144342² = 387454083589225928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440144347) 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, 10003259 + ... + 10003302.

It is an arithmetic number, because the mean of its divisors is an integer number (90029529).

Almost surely, 2^440144342 is an apocalyptic number.

440144342 is a deficient number, since it is larger than the sum of its proper divisors (280091890).

440144342 is a wasteful number, since it uses less digits than its factorization.

440144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20006574.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 440144342 is about 20979.6172987021. The cubic root of 440144342 is about 760.6736536296.

Adding to 440144342 its reverse (243441044), we get a palindrome (683585386).

The spelling of 440144342 in words is "four hundred forty million, one hundred forty-four thousand, three hundred forty-two".