2440857 has 8 divisors (see below), whose sum is σ = 3273984. Its totient is φ = 1617488.

The previous prime is 2440849. The next prime is 2440861. The reversal of 2440857 is 7580442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2440857 - 2³ = 2440849 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2440807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1833 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (409248).

2^2440857 is an apocalyptic number.

It is an amenable number.

2440857 is a deficient number, since it is larger than the sum of its proper divisors (833127).

2440857 is a wasteful number, since it uses less digits than its factorization.

2440857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4879.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2440857 is about 1562.3242301136. The cubic root of 2440857 is about 134.6420696779.

The spelling of 2440857 in words is "two million, four hundred forty thousand, eight hundred fifty-seven".