1320550004 has 24 divisors (see below), whose sum is σ = 2459604168. Its totient is φ = 618209280.

The previous prime is 1320549983. The next prime is 1320550019. The reversal of 1320550004 is 4000550231.

It can be written as a sum of positive squares in 4 ways, for example, as 490533904 + 830016100 = 22148^2 + 28810^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37187 + ... + 63434.

It is an arithmetic number, because the mean of its divisors is an integer number (102483507).

Almost surely, 2^1320550004 is an apocalyptic number.

It is an amenable number.

1320550004 is a deficient number, since it is larger than the sum of its proper divisors (1139054164).

1320550004 is a wasteful number, since it uses less digits than its factorization.

1320550004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100835 (or 100833 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1320550004 is about 36339.3726418055. The cubic root of 1320550004 is about 1097.1136461762.

The spelling of 1320550004 in words is "one billion, three hundred twenty million, five hundred fifty thousand, four".