4000365885 has 32 divisors (see below), whose sum is σ = 6430896000. Its totient is φ = 2123456256.

The previous prime is 4000365881. The next prime is 4000365907. The reversal of 4000365885 is 5885630004.

It is a happy number.

It is not a de Polignac number, because 4000365885 - 2² = 4000365881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000365881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5412846 + ... + 5413584.

It is an arithmetic number, because the mean of its divisors is an integer number (200965500).

Almost surely, 2^4000365885 is an apocalyptic number.

It is an amenable number.

4000365885 is a deficient number, since it is larger than the sum of its proper divisors (2430530115).

4000365885 is a wasteful number, since it uses less digits than its factorization.

4000365885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 4000365885 is about 63248.4457121280. The cubic root of 4000365885 is about 1587.4494510120.

Adding to 4000365885 its reverse (5885630004), we get a palindrome (9885995889).

The spelling of 4000365885 in words is "four billion, three hundred sixty-five thousand, eight hundred eighty-five".