3600040 has 16 divisors (see below), whose sum is σ = 8100180. Its totient is φ = 1440000.

The previous prime is 3600017. The next prime is 3600041. The reversal of 3600040 is 400063.

It can be written as a sum of positive squares in 2 ways, for example, as 3247204 + 352836 = 1802^2 + 594^2 .

It is not an unprimeable number, because it can be changed into a prime (3600041) by changing a digit.

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, 44961 + ... + 45040.

Almost surely, 2^3600040 is an apocalyptic number.

It is an amenable number.

3600040 is an abundant number, since it is smaller than the sum of its proper divisors (4500140).

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

3600040 is a wasteful number, since it uses less digits than its factorization.

3600040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90012 (or 90008 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3600040 is about 1897.3771369973. The cubic root of 3600040 is about 153.2624541132.

It can be divided in two parts, 36000 and 40, that multiplied together give a square (1440000 = 1200²).

The spelling of 3600040 in words is "three million, six hundred thousand, forty".