40208860 has 24 divisors (see below), whose sum is σ = 87163776. Its totient is φ = 15564480.

The previous prime is 40208843. The next prime is 40208863. The reversal of 40208860 is 6880204.

40208860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40208863) 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 7 ways as a sum of consecutive naturals, for example, 31807 + ... + 33046.

It is an arithmetic number, because the mean of its divisors is an integer number (3631824).

Almost surely, 2^40208860 is an apocalyptic number.

It is an amenable number.

40208860 is an abundant number, since it is smaller than the sum of its proper divisors (46954916).

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

40208860 is a wasteful number, since it uses less digits than its factorization.

40208860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64893 (or 64891 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 40208860 is about 6341.0456550951. The cubic root of 40208860 is about 342.5893989375.

It can be divided in two parts, 4020 and 8860, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 40208860 in words is "forty million, two hundred eight thousand, eight hundred sixty".