1042442004 has 48 divisors (see below), whose sum is σ = 2520544320. Its totient is φ = 334924800.

The previous prime is 1042442003. The next prime is 1042442047. The reversal of 1042442004 is 4002442401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042442003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231979 + ... + 236429.

It is an arithmetic number, because the mean of its divisors is an integer number (52511340).

Almost surely, 2^1042442004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042442004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260272160).

1042442004 is an abundant number, since it is smaller than the sum of its proper divisors (1478102316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042442004 is a wasteful number, since it uses less digits than its factorization.

1042442004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160 (or 5158 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 1042442004 is about 32286.8704584387. The cubic root of 1042442004 is about 1013.9517773285.

Adding to 1042442004 its reverse (4002442401), we get a palindrome (5044884405).

The spelling of 1042442004 in words is "one billion, forty-two million, four hundred forty-two thousand, four".