2393391 has 32 divisors (see below), whose sum is σ = 4290048. Its totient is φ = 1146240.

The previous prime is 2393389. The next prime is 2393407. The reversal of 2393391 is 1933932.

It is not a de Polignac number, because 2393391 - 2¹ = 2393389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2393351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2605 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (134064).

2^2393391 is an apocalyptic number.

2393391 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2393391 is a deficient number, since it is larger than the sum of its proper divisors (1896657).

2393391 is a wasteful number, since it uses less digits than its factorization.

2393391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its digits is 4374, while the sum is 30.

The square root of 2393391 is about 1547.0588224111. The cubic root of 2393391 is about 133.7635803022.

It can be divided in two parts, 2 and 393391, that added together give a palindrome (393393).

The spelling of 2393391 in words is "two million, three hundred ninety-three thousand, three hundred ninety-one".