1004440042 has 16 divisors (see below), whose sum is σ = 1519793280. Its totient is φ = 497861728.

The previous prime is 1004440033. The next prime is 1004440043. The reversal of 1004440042 is 2400444001.

It is not an unprimeable number, because it can be changed into a prime (1004440043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103878 + ... + 113134.

It is an arithmetic number, because the mean of its divisors is an integer number (94987080).

Almost surely, 2^1004440042 is an apocalyptic number.

1004440042 is a deficient number, since it is larger than the sum of its proper divisors (515353238).

1004440042 is a wasteful number, since it uses less digits than its factorization.

1004440042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9725.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 1004440042 is about 31692.9020760170. The cubic root of 1004440042 is about 1001.4778289458.

Adding to 1004440042 its reverse (2400444001), we get a palindrome (3404884043).

It can be divided in two parts, 10044 and 40042, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 1004440042 in words is "one billion, four million, four hundred forty thousand, forty-two".