444400042 has 8 divisors (see below), whose sum is σ = 669135456. Its totient is φ = 221354892.

The previous prime is 444400003. The next prime is 444400057. The reversal of 444400042 is 240004444.

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

It is a junction number, because it is equal to n+sod(n) for n = 444399986 and 444400022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421908 + ... + 422959.

It is an arithmetic number, because the mean of its divisors is an integer number (83641932).

Almost surely, 2^444400042 is an apocalyptic number.

444400042 is a deficient number, since it is larger than the sum of its proper divisors (224735414).

444400042 is a wasteful number, since it uses less digits than its factorization.

444400042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845132.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 444400042 is about 21080.7979450494. The cubic root of 444400042 is about 763.1174134672.

Adding to 444400042 its reverse (240004444), we get a palindrome (684404486).

The spelling of 444400042 in words is "four hundred forty-four million, four hundred thousand, forty-two".