40115216 has 40 divisors (see below), whose sum is σ = 80203200. Its totient is φ = 19426176.

The previous prime is 40115203. The next prime is 40115219. The reversal of 40115216 is 61251104.

It is not an unprimeable number, because it can be changed into a prime (40115219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136766 + ... + 137058.

It is an arithmetic number, because the mean of its divisors is an integer number (2005080).

Almost surely, 2^40115216 is an apocalyptic number.

It is an amenable number.

40115216 is a deficient number, since it is larger than the sum of its proper divisors (40087984).

40115216 is a wasteful number, since it uses less digits than its factorization.

40115216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 40115216 is about 6333.6573952180. The cubic root of 40115216 is about 342.3232355497.

The spelling of 40115216 in words is "forty million, one hundred fifteen thousand, two hundred sixteen".