4036520 has 16 divisors (see below), whose sum is σ = 9082260. Its totient is φ = 1614592.

The previous prime is 4036519. The next prime is 4036537. The reversal of 4036520 is 256304.

It can be written as a sum of positive squares in 2 ways, for example, as 3334276 + 702244 = 1826^2 + 838^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4036492 and 4036501.

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 3 ways as a sum of consecutive naturals, for example, 50417 + ... + 50496.

Almost surely, 2^4036520 is an apocalyptic number.

4036520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4036520 is an abundant number, since it is smaller than the sum of its proper divisors (5045740).

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

4036520 is a wasteful number, since it uses less digits than its factorization.

4036520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100924 (or 100920 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 4036520 is about 2009.1092553667. The cubic root of 4036520 is about 159.2217414311.

The spelling of 4036520 in words is "four million, thirty-six thousand, five hundred twenty".