4036840 has 32 divisors (see below), whose sum is σ = 9298080. Its totient is φ = 1576512.

The previous prime is 4036801. The next prime is 4036841. The reversal of 4036840 is 486304.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4036841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (290565).

Almost surely, 2^4036840 is an apocalyptic number.

4036840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4036840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4649040).

4036840 is an abundant number, since it is smaller than the sum of its proper divisors (5261240).

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

4036840 is a wasteful number, since it uses less digits than its factorization.

4036840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4036840 is about 2009.1888910702. The cubic root of 4036840 is about 159.2259488186.

The spelling of 4036840 in words is "four million, thirty-six thousand, eight hundred forty".