4000036634 has 24 divisors (see below), whose sum is σ = 6601796544. Its totient is φ = 1816353000.

The previous prime is 4000036633. The next prime is 4000036639. The reversal of 4000036634 is 4366300004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4000036633) 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, 246479 + ... + 262205.

It is an arithmetic number, because the mean of its divisors is an integer number (275074856).

Almost surely, 2^4000036634 is an apocalyptic number.

4000036634 is a deficient number, since it is larger than the sum of its proper divisors (2601759910).

4000036634 is a wasteful number, since it uses less digits than its factorization.

4000036634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16802 (or 16791 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 4000036634 is about 63245.8428199040. The cubic root of 4000036634 is about 1587.4058980243.

Adding to 4000036634 its reverse (4366300004), we get a palindrome (8366336638).

The spelling of 4000036634 in words is "four billion, thirty-six thousand, six hundred thirty-four".