40205208 has 16 divisors (see below), whose sum is σ = 100513080. Its totient is φ = 13401728.

The previous prime is 40205203. The next prime is 40205213. The reversal of 40205208 is 80250204.

It is an interprime number because it is at equal distance from previous prime (40205203) and next prime (40205213).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837585 + ... + 837632.

Almost surely, 2^40205208 is an apocalyptic number.

It is an amenable number.

40205208 is an abundant number, since it is smaller than the sum of its proper divisors (60307872).

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

40205208 is a wasteful number, since it uses less digits than its factorization.

40205208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675226 (or 1675222 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40205208 is about 6340.7576834318. The cubic root of 40205208 is about 342.5790266434.

The spelling of 40205208 in words is "forty million, two hundred five thousand, two hundred eight".