4094091 has 16 divisors (see below), whose sum is σ = 6181920. Its totient is φ = 2676960.

The previous prime is 4094047. The next prime is 4094113. The reversal of 4094091 is 1904904.

4094091 is a nontrivial binomial coefficient, being equal to C(2862, 2).

It is not a de Polignac number, because 4094091 - 2¹¹ = 4092043 is a prime.

It is a super-2 number, since 2×4094091² = 33523162232562, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4094011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1 + ... + 2861.

It is an arithmetic number, because the mean of its divisors is an integer number (386370).

Almost surely, 2^4094091 is an apocalyptic number.

4094091 is the 2861-st triangular number and also the 1431-st hexagonal number.

4094091 is a deficient number, since it is larger than the sum of its proper divisors (2087829).

4094091 is a wasteful number, since it uses less digits than its factorization.

4094091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2923 (or 2917 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 4094091 is about 2023.3860234765. The cubic root of 4094091 is about 159.9751393665.

Adding to 4094091 its reverse (1904904), we get a palindrome (5998995).

The spelling of 4094091 in words is "four million, ninety-four thousand, ninety-one".