2349991 has 12 divisors (see below), whose sum is σ = 2758800. Its totient is φ = 1995840.

The previous prime is 2349973. The next prime is 2350001. The reversal of 2349991 is 1999432.

It is not a de Polignac number, because 2349991 - 2⁵ = 2349959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2349991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2349091) 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, 9631 + ... + 9871.

It is an arithmetic number, because the mean of its divisors is an integer number (229900).

2^2349991 is an apocalyptic number.

2349991 is a deficient number, since it is larger than the sum of its proper divisors (408809).

2349991 is a wasteful number, since it uses less digits than its factorization.

2349991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 447 counting only the distinct ones).

The product of its digits is 17496, while the sum is 37.

The square root of 2349991 is about 1532.9680361964. The cubic root of 2349991 is about 132.9501197995.

The spelling of 2349991 in words is "two million, three hundred forty-nine thousand, nine hundred ninety-one".