1065238020 has 576 divisors, whose sum is σ = 4440199680. Its totient is φ = 206807040.

The previous prime is 1065238007. The next prime is 1065238039. The reversal of 1065238020 is 208325601.

1065238020 is a `hidden beast` number, since 1 + 0 + 652 + 3 + 8 + 0 + 2 + 0 = 666.

1065238020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1065238020² = 2269464078507040800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 7775392 + ... + 7775528.

It is an arithmetic number, because the mean of its divisors is an integer number (7708680).

Almost surely, 2^1065238020 is an apocalyptic number.

1065238020 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 1065238020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2220099840).

1065238020 is an abundant number, since it is smaller than the sum of its proper divisors (3374961660).

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

1065238020 is a wasteful number, since it uses less digits than its factorization.

1065238020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1065238020 is about 32637.9843127605. The cubic root of 1065238020 is about 1021.2895454625.

The spelling of 1065238020 in words is "one billion, sixty-five million, two hundred thirty-eight thousand, twenty".