1204044012 has 18 divisors (see below), whose sum is σ = 3043555788. Its totient is φ = 401347992.

The previous prime is 1204043987. The next prime is 1204044059. The reversal of 1204044012 is 2104404021.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1204044012² = 2899443965666112288, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16722798 + ... + 16722869.

Almost surely, 2^1204044012 is an apocalyptic number.

1204044012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1204044012 is an abundant number, since it is smaller than the sum of its proper divisors (1839511776).

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

1204044012 is a wasteful number, since it uses less digits than its factorization.

1204044012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33445677 (or 33445672 counting only the distinct ones).

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

The square root of 1204044012 is about 34699.3373423759. The cubic root of 1204044012 is about 1063.8509540693.

Adding to 1204044012 its reverse (2104404021), we get a palindrome (3308448033).

The spelling of 1204044012 in words is "one billion, two hundred four million, forty-four thousand, twelve".