1536810804 has 36 divisors (see below), whose sum is σ = 4018674660. Its totient is φ = 494605440.

The previous prime is 1536810797. The next prime is 1536810809. The reversal of 1536810804 is 4080186351.

It can be written as a sum of positive squares in 2 ways, for example, as 1145957904 + 390852900 = 33852^2 + 19770^2 .

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

It is a super-2 number, since 2×1536810804² = 4723574894582252832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1536810809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734977 + ... + 737064.

Almost surely, 2^1536810804 is an apocalyptic number.

It is an amenable number.

1536810804 is an abundant number, since it is smaller than the sum of its proper divisors (2481863856).

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

1536810804 is a wasteful number, since it uses less digits than its factorization.

1536810804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472080 (or 1472075 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1536810804 is about 39202.1785619116. The cubic root of 1536810804 is about 1154.0026381941.

The spelling of 1536810804 in words is "one billion, five hundred thirty-six million, eight hundred ten thousand, eight hundred four".