1051865360 has 120 divisors (see below), whose sum is σ = 3063850776. Its totient is φ = 332881920.

The previous prime is 1051865357. The next prime is 1051865387. The reversal of 1051865360 is 635681501.

It can be written as a sum of positive squares in 4 ways, for example, as 4177936 + 1047687424 = 2044^2 + 32368^2 .

It is a super-2 number, since 2×1051865360² = 2212841471135859200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1051865360.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40640 + ... + 61280.

Almost surely, 2^1051865360 is an apocalyptic number.

1051865360 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 1051865360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531925388).

1051865360 is an abundant number, since it is smaller than the sum of its proper divisors (2011985416).

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

1051865360 is a wasteful number, since it uses less digits than its factorization.

1051865360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20681 (or 20668 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1051865360 is about 32432.4738495231. The cubic root of 1051865360 is about 1016.9978880778.

The spelling of 1051865360 in words is "one billion, fifty-one million, eight hundred sixty-five thousand, three hundred sixty".