1047200004 has 36 divisors (see below), whose sum is σ = 2648793420. Its totient is φ = 348841920.

The previous prime is 1047199999. The next prime is 1047200039. The reversal of 1047200004 is 4000027401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 668119104 + 379080900 = 25848^2 + 19470^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1047200004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53014 + ... + 70034.

It is an arithmetic number, because the mean of its divisors is an integer number (73577595).

Almost surely, 2^1047200004 is an apocalyptic number.

It is an amenable number.

1047200004 is an abundant number, since it is smaller than the sum of its proper divisors (1601593416).

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

1047200004 is a wasteful number, since it uses less digits than its factorization.

1047200004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18740 (or 18735 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 1047200004 is about 32360.4697740932. The cubic root of 1047200004 is about 1015.4920904091.

Adding to 1047200004 its reverse (4000027401), we get a palindrome (5047227405).

The spelling of 1047200004 in words is "one billion, forty-seven million, two hundred thousand, four".