1065326080 has 320 divisors, whose sum is σ = 3341036160. Its totient is φ = 316145664.

The previous prime is 1065326069. The next prime is 1065326099. The reversal of 1065326080 is 806235601.

It is a tau number, because it is divible by the number of its divisors (320).

It is a super-2 number, since 2×1065326080² = 2269839313456332800, which contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 3960186 + ... + 3960454.

It is an arithmetic number, because the mean of its divisors is an integer number (10440738).

Almost surely, 2^1065326080 is an apocalyptic number.

1065326080 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 1065326080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1670518080).

1065326080 is an abundant number, since it is smaller than the sum of its proper divisors (2275710080).

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

1065326080 is a wasteful number, since it uses less digits than its factorization.

1065326080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1065326080 is about 32639.3333265249. Note that the first 4 decimals coincide. The cubic root of 1065326080 is about 1021.3176869913.

The spelling of 1065326080 in words is "one billion, sixty-five million, three hundred twenty-six thousand, eighty".