440042444 has 6 divisors (see below), whose sum is σ = 770074284. Its totient is φ = 220021220.

The previous prime is 440042437. The next prime is 440042459. The reversal of 440042444 is 444240044.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55005302 + ... + 55005309.

It is an arithmetic number, because the mean of its divisors is an integer number (128345714).

Almost surely, 2^440042444 is an apocalyptic number.

It is an amenable number.

440042444 is a deficient number, since it is larger than the sum of its proper divisors (330031840).

440042444 is a wasteful number, since it uses less digits than its factorization.

440042444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110010615 (or 110010613 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 440042444 is about 20977.1886581591. The cubic root of 440042444 is about 760.6149478075.

Adding to 440042444 its reverse (444240044), we get a palindrome (884282488).

The spelling of 440042444 in words is "four hundred forty million, forty-two thousand, four hundred forty-four".