2456842 has 8 divisors (see below), whose sum is σ = 3695076. Its totient is φ = 1225152.

The previous prime is 2456807. The next prime is 2456849. The reversal of 2456842 is 2486542.

2456842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1846881 + 609961 = 1359^2 + 781^2 .

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

It is a super-2 number, since 2×2456842² = 12072145225928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2456849) 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 3 ways as a sum of consecutive naturals, for example, 553 + ... + 2284.

2^2456842 is an apocalyptic number.

2456842 is a deficient number, since it is larger than the sum of its proper divisors (1238234).

2456842 is a wasteful number, since it uses less digits than its factorization.

2456842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3272.

The product of its digits is 15360, while the sum is 31.

The square root of 2456842 is about 1567.4316572023. The cubic root of 2456842 is about 134.9353508471.

The spelling of 2456842 in words is "two million, four hundred fifty-six thousand, eight hundred forty-two".