1065258820 has 24 divisors (see below), whose sum is σ = 2247654528. Its totient is φ = 424082400.

The previous prime is 1065258793. The next prime is 1065258829. The reversal of 1065258820 is 288525601.

It is a super-2 number, since 2×1065258820² = 2269552707175584800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1065258820.

It is not an unprimeable number, because it can be changed into a prime (1065258829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121996 + ... + 130435.

It is an arithmetic number, because the mean of its divisors is an integer number (93652272).

Almost surely, 2^1065258820 is an apocalyptic number.

1065258820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065258820 is an abundant number, since it is smaller than the sum of its proper divisors (1182395708).

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

1065258820 is a wasteful number, since it uses less digits than its factorization.

1065258820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252651 (or 252649 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 1065258820 is about 32638.3029583341. The cubic root of 1065258820 is about 1021.2961927043.

The spelling of 1065258820 in words is "one billion, sixty-five million, two hundred fifty-eight thousand, eight hundred twenty".