1320475050 has 72 divisors (see below), whose sum is σ = 3580356780. Its totient is φ = 348883200.

The previous prime is 1320475049. The next prime is 1320475063. The reversal of 1320475050 is 505740231.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1056185001 + 264290049 = 32499^2 + 16257^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35590 + ... + 62510.

Almost surely, 2^1320475050 is an apocalyptic number.

1320475050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320475050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790178390).

1320475050 is an abundant number, since it is smaller than the sum of its proper divisors (2259881730).

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

1320475050 is a wasteful number, since it uses less digits than its factorization.

1320475050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27048 (or 27040 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 1320475050 is about 36338.3413215298. The cubic root of 1320475050 is about 1097.0928885091.

The spelling of 1320475050 in words is "one billion, three hundred twenty million, four hundred seventy-five thousand, fifty".