4238091 has 48 divisors (see below), whose sum is σ = 7469280. Its totient is φ = 2280960.

The previous prime is 4238077. The next prime is 4238093. The reversal of 4238091 is 1908324.

It is not a de Polignac number, because 4238091 - 2⁷ = 4237963 is a prime.

It is a super-2 number, since 2×4238091² = 35922830648562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4238093) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47575 + ... + 47663.

It is an arithmetic number, because the mean of its divisors is an integer number (155610).

Almost surely, 2^4238091 is an apocalyptic number.

4238091 is a deficient number, since it is larger than the sum of its proper divisors (3231189).

4238091 is a wasteful number, since it uses less digits than its factorization.

4238091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4238091 is about 2058.6624298316. The cubic root of 4238091 is about 161.8291523036.

The spelling of 4238091 in words is "four million, two hundred thirty-eight thousand, ninety-one".