40210208 has 24 divisors (see below), whose sum is σ = 79518348. Its totient is φ = 20015104.

The previous prime is 40210207. The next prime is 40210223. The reversal of 40210208 is 80201204.

It can be written as a sum of positive squares in 2 ways, for example, as 39589264 + 620944 = 6292^2 + 788^2 .

It is not an unprimeable number, because it can be changed into a prime (40210207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760 + ... + 10152.

Almost surely, 2^40210208 is an apocalyptic number.

It is an amenable number.

40210208 is a deficient number, since it is larger than the sum of its proper divisors (39308140).

40210208 is a wasteful number, since it uses less digits than its factorization.

40210208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5636 (or 5628 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 40210208 is about 6341.1519458218. The cubic root of 40210208 is about 342.5932273255.

The spelling of 40210208 in words is "forty million, two hundred ten thousand, two hundred eight".