4000916 has 18 divisors (see below), whose sum is σ = 7439838. Its totient is φ = 1882240.

The previous prime is 4000907. The next prime is 4000937. The reversal of 4000916 is 6190004.

It can be written as a sum of positive squares in 3 ways, for example, as 1008016 + 2992900 = 1004^2 + 1730^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575 + ... + 2886.

Almost surely, 2^4000916 is an apocalyptic number.

It is an amenable number.

4000916 is a deficient number, since it is larger than the sum of its proper divisors (3438922).

4000916 is a wasteful number, since it uses less digits than its factorization.

4000916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499 (or 3480 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4000916 is about 2000.2289868913. The cubic root of 4000916 is about 158.7522214334.

The spelling of 4000916 in words is "four million, nine hundred sixteen", and thus it is an aban number.