4001916 has 12 divisors (see below), whose sum is σ = 9337832. Its totient is φ = 1333968.

The previous prime is 4001891. The next prime is 4001939. The reversal of 4001916 is 6191004.

4001916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 4001892 and 4001901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166735 + ... + 166758.

Almost surely, 2^4001916 is an apocalyptic number.

It is an amenable number.

4001916 is an abundant number, since it is smaller than the sum of its proper divisors (5335916).

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

4001916 is a wasteful number, since it uses less digits than its factorization.

4001916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333500 (or 333498 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 4001916 is about 2000.4789426535. The cubic root of 4001916 is about 158.7654466545.

The spelling of 4001916 in words is "four million, one thousand, nine hundred sixteen".