40205286 has 24 divisors (see below), whose sum is σ = 95031144. Its totient is φ = 12183360.

The previous prime is 40205267. The next prime is 40205299. The reversal of 40205286 is 68250204.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101331 + ... + 101726.

It is an arithmetic number, because the mean of its divisors is an integer number (3959631).

Almost surely, 2^40205286 is an apocalyptic number.

40205286 is an abundant number, since it is smaller than the sum of its proper divisors (54825858).

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

40205286 is a wasteful number, since it uses less digits than its factorization.

40205286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203076 (or 203073 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40205286 is about 6340.7638341134. The cubic root of 40205286 is about 342.5792481831.

The spelling of 40205286 in words is "forty million, two hundred five thousand, two hundred eighty-six".