4011992 has 16 divisors (see below), whose sum is σ = 7543800. Its totient is φ = 2000320.

The previous prime is 4011991. The next prime is 4012013. The reversal of 4011992 is 2991104.

4011992 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892 + ... + 5652.

Almost surely, 2^4011992 is an apocalyptic number.

It is an amenable number.

4011992 is a deficient number, since it is larger than the sum of its proper divisors (3531808).

4011992 is a wasteful number, since it uses less digits than its factorization.

4011992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1422 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 4011992 is about 2002.9957563610. The cubic root of 4011992 is about 158.8985812103.

The spelling of 4011992 in words is "four million, eleven thousand, nine hundred ninety-two".