1065883840 has 56 divisors (see below), whose sum is σ = 2900732832. Its totient is φ = 365445120.

The previous prime is 1065883837. The next prime is 1065883843. The reversal of 1065883840 is 483885601.

It is an interprime number because it is at equal distance from previous prime (1065883837) and next prime (1065883843).

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1065883840² = 2272216720746291200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1065883843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235681 + ... + 240160.

Almost surely, 2^1065883840 is an apocalyptic number.

1065883840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065883840 is an abundant number, since it is smaller than the sum of its proper divisors (1834848992).

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

1065883840 is an equidigital number, since it uses as much as digits as its factorization.

1065883840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475865 (or 475855 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1065883840 is about 32647.8765006240. The cubic root of 1065883840 is about 1021.4958955785.

The spelling of 1065883840 in words is "one billion, sixty-five million, eight hundred eighty-three thousand, eight hundred forty".