1050320520 has 160 divisors (see below), whose sum is σ = 3738101400. Its totient is φ = 263596032.

The previous prime is 1050320497. The next prime is 1050320527. The reversal of 1050320520 is 250230501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1048593924 + 1726596 = 32382^2 + 1314^2 .

It is a super-2 number, since 2×1050320520² = 2206346389466140800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1050320493 and 1050320502.

It is not an unprimeable number, because it can be changed into a prime (1050320527) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 45546 + ... + 64614.

Almost surely, 2^1050320520 is an apocalyptic number.

1050320520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1050320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869050700).

1050320520 is an abundant number, since it is smaller than the sum of its proper divisors (2687780880).

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

1050320520 is a wasteful number, since it uses less digits than its factorization.

1050320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19109 (or 19096 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1050320520 is about 32408.6488456400. The cubic root of 1050320520 is about 1016.4997670426.

The spelling of 1050320520 in words is "one billion, fifty million, three hundred twenty thousand, five hundred twenty".