1042111404 has 72 divisors (see below), whose sum is σ = 2732686320. Its totient is φ = 334454400.

The previous prime is 1042111403. The next prime is 1042111417. The reversal of 1042111404 is 4041112401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1042111403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438339 + ... + 440709.

Almost surely, 2^1042111404 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 1042111404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366343160).

1042111404 is an abundant number, since it is smaller than the sum of its proper divisors (1690574916).

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

1042111404 is a wasteful number, since it uses less digits than its factorization.

1042111404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1042111404 is about 32281.7503242931. The cubic root of 1042111404 is about 1013.8445777916.

Adding to 1042111404 its reverse (4041112401), we get a palindrome (5083223805).

The spelling of 1042111404 in words is "one billion, forty-two million, one hundred eleven thousand, four hundred four".