1065642592 has 72 divisors (see below), whose sum is σ = 2486753136. Its totient is φ = 448051968.

The previous prime is 1065642563. The next prime is 1065642593. The reversal of 1065642592 is 2952465601.

It is a super-2 number, since 2×1065642592² = 2271188267768956928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065642593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76693 + ... + 89515.

It is an arithmetic number, because the mean of its divisors is an integer number (34538238).

Almost surely, 2^1065642592 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 1065642592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1243376568).

1065642592 is an abundant number, since it is smaller than the sum of its proper divisors (1421110544).

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

1065642592 is a wasteful number, since it uses less digits than its factorization.

1065642592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12900 (or 12885 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 1065642592 is about 32644.1815948876. The cubic root of 1065642592 is about 1021.4188226283.

The spelling of 1065642592 in words is "one billion, sixty-five million, six hundred forty-two thousand, five hundred ninety-two".