4018091 has 8 divisors (see below), whose sum is σ = 5009664. Its totient is φ = 3130920.

The previous prime is 4018087. The next prime is 4018093. The reversal of 4018091 is 1908104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4018091 - 2² = 4018087 is a prime.

It is a super-2 number, since 2×4018091² = 32290110568562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4018093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26015 + ... + 26168.

It is an arithmetic number, because the mean of its divisors is an integer number (626208).

Almost surely, 2^4018091 is an apocalyptic number.

4018091 is a deficient number, since it is larger than the sum of its proper divisors (991573).

4018091 is a wasteful number, since it uses less digits than its factorization.

4018091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52201.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4018091 is about 2004.5176477148. The cubic root of 4018091 is about 158.9790592518.

The spelling of 4018091 in words is "four million, eighteen thousand, ninety-one".