40065884 has 12 divisors (see below), whose sum is σ = 70187208. Its totient is φ = 20012400.

The previous prime is 40065881. The next prime is 40065899. The reversal of 40065884 is 48856004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065881) 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, 227 + ... + 8954.

It is an arithmetic number, because the mean of its divisors is an integer number (5848934).

Almost surely, 2^40065884 is an apocalyptic number.

It is an amenable number.

40065884 is a deficient number, since it is larger than the sum of its proper divisors (30121324).

40065884 is a wasteful number, since it uses less digits than its factorization.

40065884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276 (or 10274 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 40065884 is about 6329.7617648692. The cubic root of 40065884 is about 342.1828530981.

The spelling of 40065884 in words is "forty million, sixty-five thousand, eight hundred eighty-four".