1204104042 has 40 divisors (see below), whose sum is σ = 2707926276. Its totient is φ = 399904128.

The previous prime is 1204104029. The next prime is 1204104059. The reversal of 1204104042 is 2404014021.

It can be written as a sum of positive squares in 2 ways, for example, as 1004192721 + 199911321 = 31689^2 + 14139^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31458 + ... + 58290.

Almost surely, 2^1204104042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204104042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353963138).

1204104042 is an abundant number, since it is smaller than the sum of its proper divisors (1503822234).

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

1204104042 is a wasteful number, since it uses less digits than its factorization.

1204104042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27124 (or 27115 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1204104042 is about 34700.2023337041. The cubic root of 1204104042 is about 1063.8686339079.

Adding to 1204104042 its reverse (2404014021), we get a palindrome (3608118063).

The spelling of 1204104042 in words is "one billion, two hundred four million, one hundred four thousand, forty-two".