440304142 has 8 divisors (see below), whose sum is σ = 660546432. Its totient is φ = 220122000.

The previous prime is 440304103. The next prime is 440304143. The reversal of 440304142 is 241403044.

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 (440304143) 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, 16467 + ... + 33937.

It is an arithmetic number, because the mean of its divisors is an integer number (82568304).

Almost surely, 2^440304142 is an apocalyptic number.

440304142 is a deficient number, since it is larger than the sum of its proper divisors (220242290).

440304142 is a wasteful number, since it uses less digits than its factorization.

440304142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30074.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 440304142 is about 20983.4254115004. The cubic root of 440304142 is about 760.7656999050.

Adding to 440304142 its reverse (241403044), we get a palindrome (681707186).

The spelling of 440304142 in words is "four hundred forty million, three hundred four thousand, one hundred forty-two".