1065409888 has 48 divisors (see below), whose sum is σ = 2199718080. Its totient is φ = 507257856.

The previous prime is 1065409871. The next prime is 1065409901. The reversal of 1065409888 is 8889045601.

1065409888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065409888² = 2270196458896345088, which contains 22 as substring.

It is a congruent number.

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, 59881 + ... + 75607.

It is an arithmetic number, because the mean of its divisors is an integer number (45827460).

Almost surely, 2^1065409888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1065409888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099859040).

1065409888 is an abundant number, since it is smaller than the sum of its proper divisors (1134308192).

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

1065409888 is a wasteful number, since it uses less digits than its factorization.

1065409888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15839 (or 15831 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 1065409888 is about 32640.6171510283. The cubic root of 1065409888 is about 1021.3444682588.

The spelling of 1065409888 in words is "one billion, sixty-five million, four hundred nine thousand, eight hundred eighty-eight".