40066236 has 36 divisors (see below), whose sum is σ = 115747632. Its totient is φ = 11447424.

The previous prime is 40066217. The next prime is 40066237. The reversal of 40066236 is 63266004.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79245 + ... + 79748.

It is an arithmetic number, because the mean of its divisors is an integer number (3215212).

Almost surely, 2^40066236 is an apocalyptic number.

It is an amenable number.

40066236 is an abundant number, since it is smaller than the sum of its proper divisors (75681396).

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

40066236 is a wasteful number, since it uses less digits than its factorization.

40066236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159010 (or 159005 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 40066236 is about 6329.7895699620. The cubic root of 40066236 is about 342.1838551810.

The spelling of 40066236 in words is "forty million, sixty-six thousand, two hundred thirty-six".