1365689634 has 16 divisors (see below), whose sum is σ = 2825565120. Its totient is φ = 439532240.

The previous prime is 1365689627. The next prime is 1365689651. The reversal of 1365689634 is 4369865631.

It is a happy number.

It is a Curzon number.

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, 3924222 + ... + 3924569.

It is an arithmetic number, because the mean of its divisors is an integer number (176597820).

Almost surely, 2^1365689634 is an apocalyptic number.

1365689634 is an abundant number, since it is smaller than the sum of its proper divisors (1459875486).

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

1365689634 is a wasteful number, since it uses less digits than its factorization.

1365689634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7848825.

The product of its digits is 2799360, while the sum is 51.

The square root of 1365689634 is about 36955.2382484540. The cubic root of 1365689634 is about 1109.4745325538.

The spelling of 1365689634 in words is "one billion, three hundred sixty-five million, six hundred eighty-nine thousand, six hundred thirty-four".