40010216 has 8 divisors (see below), whose sum is σ = 75019170. Its totient is φ = 20005104.

The previous prime is 40010213. The next prime is 40010221. The reversal of 40010216 is 61201004.

It can be written as a sum of positive squares in only one way, i.e., 36602500 + 3407716 = 6050^2 + 1846^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 40010216.

It is not an unprimeable number, because it can be changed into a prime (40010213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500631 + ... + 2500646.

Almost surely, 2^40010216 is an apocalyptic number.

It is an amenable number.

40010216 is a deficient number, since it is larger than the sum of its proper divisors (35008954).

40010216 is a wasteful number, since it uses less digits than its factorization.

40010216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001283 (or 5001279 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 40010216 is about 6325.3629144896. The cubic root of 40010216 is about 342.0243020475.

The spelling of 40010216 in words is "forty million, ten thousand, two hundred sixteen".