1165264434 has 16 divisors (see below), whose sum is σ = 2589476640. Its totient is φ = 388421460.

The previous prime is 1165264417. The next prime is 1165264481. The reversal of 1165264434 is 4344625611.

1165264434 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 2 + 644 + 3 + 4 = 666.

It is a super-2 number, since 2×1165264434² = 2715682402290680712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10789432 + ... + 10789539.

It is an arithmetic number, because the mean of its divisors is an integer number (161842290).

Almost surely, 2^1165264434 is an apocalyptic number.

1165264434 is an abundant number, since it is smaller than the sum of its proper divisors (1424212206).

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

1165264434 is a wasteful number, since it uses less digits than its factorization.

1165264434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21578982 (or 21578976 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1165264434 is about 34135.9697972681. The cubic root of 1165264434 is about 1052.3046683434.

The spelling of 1165264434 in words is "one billion, one hundred sixty-five million, two hundred sixty-four thousand, four hundred thirty-four".