40065284 has 12 divisors (see below), whose sum is σ = 80130624. Its totient is φ = 17170824.

The previous prime is 40065257. The next prime is 40065317. The reversal of 40065284 is 48256004.

40065284 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715424 + ... + 715479.

It is an arithmetic number, because the mean of its divisors is an integer number (6677552).

Almost surely, 2^40065284 is an apocalyptic number.

It is an amenable number.

40065284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40065284 is a wasteful number, since it uses less digits than its factorization.

40065284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430914 (or 1430912 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 40065284 is about 6329.7143695431. The cubic root of 40065284 is about 342.1811449888.

The spelling of 40065284 in words is "forty million, sixty-five thousand, two hundred eighty-four".