2453820 has 24 divisors (see below), whose sum is σ = 6870864. Its totient is φ = 654336.

The previous prime is 2453783. The next prime is 2453821. The reversal of 2453820 is 283542.

2453820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2453821) 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 7 ways as a sum of consecutive naturals, for example, 20389 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (286286).

2^2453820 is an apocalyptic number.

2453820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2453820 is an abundant number, since it is smaller than the sum of its proper divisors (4417044).

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

2453820 is a wasteful number, since it uses less digits than its factorization.

2453820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40909 (or 40907 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2453820 is about 1566.4673632093. The cubic root of 2453820 is about 134.8800031098.

The spelling of 2453820 in words is "two million, four hundred fifty-three thousand, eight hundred twenty".