4040036 has 48 divisors (see below), whose sum is σ = 9502080. Its totient is φ = 1451520.

The previous prime is 4040021. The next prime is 4040041. The reversal of 4040036 is 6300404.

It is a junction number, because it is equal to n+sod(n) for n = 4039996 and 4040023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3500 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (197960).

Almost surely, 2^4040036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4040036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4751040).

4040036 is an abundant number, since it is smaller than the sum of its proper divisors (5462044).

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

4040036 is a wasteful number, since it uses less digits than its factorization.

4040036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4040036 is about 2009.9840795389. The cubic root of 4040036 is about 159.2679579061.

The spelling of 4040036 in words is "four million, forty thousand, thirty-six", and thus it is an eban number.