4091992 has 16 divisors (see below), whose sum is σ = 8076600. Its totient is φ = 1938240.

The previous prime is 4091959. The next prime is 4091993. The reversal of 4091992 is 2991904.

4091992 is digitally balanced in base 2, 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 (4091993) by changing a digit.

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, 13309 + ... + 13612.

Almost surely, 2^4091992 is an apocalyptic number.

It is an amenable number.

4091992 is a deficient number, since it is larger than the sum of its proper divisors (3984608).

4091992 is a wasteful number, since it uses less digits than its factorization.

4091992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26946 (or 26942 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 4091992 is about 2022.8672719682. The cubic root of 4091992 is about 159.9477954686.

It can be divided in two parts, 409 and 1992, that added together give a 4-th power (2401 = 7⁴).

The spelling of 4091992 in words is "four million, ninety-one thousand, nine hundred ninety-two".