2420856 has 24 divisors (see below), whose sum is σ = 6556680. Its totient is φ = 806928.

The previous prime is 2420849. The next prime is 2420863. The reversal of 2420856 is 6580242.

It is an interprime number because it is at equal distance from previous prime (2420849) and next prime (2420863).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16740 + ... + 16883.

It is an arithmetic number, because the mean of its divisors is an integer number (273195).

2^2420856 is an apocalyptic number.

It is an amenable number.

2420856 is an abundant number, since it is smaller than the sum of its proper divisors (4135824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2420856 is a wasteful number, since it uses less digits than its factorization.

2420856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33635 (or 33628 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2420856 is about 1555.9100231054. The cubic root of 2420856 is about 134.2732968319.

The spelling of 2420856 in words is "two million, four hundred twenty thousand, eight hundred fifty-six".