2390857 has 12 divisors (see below), whose sum is σ = 2831760. Its totient is φ = 2012136.

The previous prime is 2390849. The next prime is 2390879. The reversal of 2390857 is 7580932.

2390857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2390857 - 2³ = 2390849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2390887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2478 + ... + 3304.

It is an arithmetic number, because the mean of its divisors is an integer number (235980).

2^2390857 is an apocalyptic number.

It is an amenable number.

2390857 is a deficient number, since it is larger than the sum of its proper divisors (440903).

2390857 is an equidigital number, since it uses as much as digits as its factorization.

2390857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2390857 is about 1546.2396321399. The cubic root of 2390857 is about 133.7163562859.

The spelling of 2390857 in words is "two million, three hundred ninety thousand, eight hundred fifty-seven".