1065021260 has 24 divisors (see below), whose sum is σ = 2237636016. Its totient is φ = 425800640.

The previous prime is 1065021241. The next prime is 1065021277. The reversal of 1065021260 is 621205601.

It is a super-2 number, since 2×1065021260² = 2268540568503975200, which contains 22 as substring.

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, 32990 + ... + 56730.

It is an arithmetic number, because the mean of its divisors is an integer number (93234834).

Almost surely, 2^1065021260 is an apocalyptic number.

1065021260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065021260 is an abundant number, since it is smaller than the sum of its proper divisors (1172614756).

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

1065021260 is a wasteful number, since it uses less digits than its factorization.

1065021260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25993 (or 25991 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1065021260 is about 32634.6634730619. The cubic root of 1065021260 is about 1021.2202683823.

Adding to 1065021260 its reverse (621205601), we get a palindrome (1686226861).

The spelling of 1065021260 in words is "one billion, sixty-five million, twenty-one thousand, two hundred sixty".