2408391 has 12 divisors (see below), whose sum is σ = 3528720. Its totient is φ = 1582560.

The previous prime is 2408389. The next prime is 2408431. The reversal of 2408391 is 1938042.

It is not a de Polignac number, because 2408391 - 2¹ = 2408389 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2408311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1246 + ... + 2523.

It is an arithmetic number, because the mean of its divisors is an integer number (294060).

2^2408391 is an apocalyptic number.

2408391 is a deficient number, since it is larger than the sum of its proper divisors (1120329).

2408391 is a wasteful number, since it uses less digits than its factorization.

2408391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846 (or 3843 counting only the distinct ones).

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

The square root of 2408391 is about 1551.8991590951. The cubic root of 2408391 is about 134.0424421880.

The spelling of 2408391 in words is "two million, four hundred eight thousand, three hundred ninety-one".