1065647072 has 192 divisors, whose sum is σ = 2682408960. Its totient is φ = 406425600.

The previous prime is 1065646987. The next prime is 1065647081. The reversal of 1065647072 is 2707465601.

It is a super-2 number, since 2×1065647072² = 2271207364124346368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 5409278 + ... + 5409474.

It is an arithmetic number, because the mean of its divisors is an integer number (13970880).

Almost surely, 2^1065647072 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 1065647072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341204480).

1065647072 is an abundant number, since it is smaller than the sum of its proper divisors (1616761888).

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

1065647072 is a wasteful number, since it uses less digits than its factorization.

1065647072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 1065647072 is about 32644.2502134756. The cubic root of 1065647072 is about 1021.4202539868.

The spelling of 1065647072 in words is "one billion, sixty-five million, six hundred forty-seven thousand, seventy-two".