4026091 has 4 divisors (see below), whose sum is σ = 4045384. Its totient is φ = 4006800.

The previous prime is 4026083. The next prime is 4026103. The reversal of 4026091 is 1906204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4026091 - 2³ = 4026083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4026031) 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, 9330 + ... + 9751.

It is an arithmetic number, because the mean of its divisors is an integer number (1011346).

Almost surely, 2^4026091 is an apocalyptic number.

4026091 is a deficient number, since it is larger than the sum of its proper divisors (19293).

4026091 is a wasteful number, since it uses less digits than its factorization.

4026091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19292.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 4026091 is about 2006.5121479822. The cubic root of 4026091 is about 159.0844981560.

The spelling of 4026091 in words is "four million, twenty-six thousand, ninety-one".