40211216 has 20 divisors (see below), whose sum is σ = 80423424. Its totient is φ = 19456800.

The previous prime is 40211209. The next prime is 40211233. The reversal of 40211216 is 61211204.

40211216 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40211194 and 40211203.

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, 40040 + ... + 41031.

Almost surely, 2^40211216 is an apocalyptic number.

It is an amenable number.

40211216 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.

40211216 is a wasteful number, since it uses less digits than its factorization.

40211216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81110 (or 81104 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 40211216 is about 6341.2314261506. The cubic root of 40211216 is about 342.5960900404.

The spelling of 40211216 in words is "forty million, two hundred eleven thousand, two hundred sixteen".