1004235012 has 72 divisors (see below), whose sum is σ = 2807269920. Its totient is φ = 300136320.

The previous prime is 1004234989. The next prime is 1004235053. The reversal of 1004235012 is 2105324001.

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 23 ways as a sum of consecutive naturals, for example, 11539 + ... + 46277.

It is an arithmetic number, because the mean of its divisors is an integer number (38989860).

Almost surely, 2^1004235012 is an apocalyptic number.

1004235012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004235012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403634960).

1004235012 is an abundant number, since it is smaller than the sum of its proper divisors (1803034908).

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

1004235012 is a wasteful number, since it uses less digits than its factorization.

1004235012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34833 (or 34828 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1004235012 is about 31689.6672749968. The cubic root of 1004235012 is about 1001.4096825281.

Adding to 1004235012 its reverse (2105324001), we get a palindrome (3109559013).

It can be divided in two parts, 10042 and 35012, that added together give a palindrome (45054).

The spelling of 1004235012 in words is "one billion, four million, two hundred thirty-five thousand, twelve".