1044020042 has 8 divisors (see below), whose sum is σ = 1686493956. Its totient is φ = 481855392.

The previous prime is 1044020041. The next prime is 1044020069. The reversal of 1044020042 is 2400204401.

It can be written as a sum of positive squares in 2 ways, for example, as 1044000721 + 19321 = 32311^2 + 139^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1044020042.

It is not an unprimeable number, because it can be changed into a prime (1044020041) 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, 20077283 + ... + 20077334.

Almost surely, 2^1044020042 is an apocalyptic number.

1044020042 is a deficient number, since it is larger than the sum of its proper divisors (642473914).

1044020042 is a wasteful number, since it uses less digits than its factorization.

1044020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40154632.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1044020042 is about 32311.2989834825. The cubic root of 1044020042 is about 1014.4631559711.

Adding to 1044020042 its reverse (2400204401), we get a palindrome (3444224443).

The spelling of 1044020042 in words is "one billion, forty-four million, twenty thousand, forty-two".