1200013504 has 56 divisors (see below), whose sum is σ = 2471623200. Its totient is φ = 577382400.

The previous prime is 1200013487. The next prime is 1200013511. The reversal of 1200013504 is 4053100021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 665404 + ... + 667204.

Almost surely, 2^1200013504 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 1200013504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235811600).

1200013504 is an abundant number, since it is smaller than the sum of its proper divisors (1271609696).

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

1200013504 is a wasteful number, since it uses less digits than its factorization.

1200013504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1200013504 is about 34641.2110642801. The cubic root of 1200013504 is about 1062.6625553180.

Adding to 1200013504 its reverse (4053100021), we get a palindrome (5253113525).

The spelling of 1200013504 in words is "one billion, two hundred million, thirteen thousand, five hundred four".