2455920 has 100 divisors (see below), whose sum is σ = 8552280. Its totient is φ = 653184.

The previous prime is 2455909. The next prime is 2455927. The reversal of 2455920 is 295542.

2455920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2455927) 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 19 ways as a sum of consecutive naturals, for example, 6291 + ... + 6669.

2^2455920 is an apocalyptic number.

2455920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2455920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4276140).

2455920 is an abundant number, since it is smaller than the sum of its proper divisors (6096360).

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

2455920 is a wasteful number, since it uses less digits than its factorization.

2455920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2455920 is about 1567.1375178969. The cubic root of 2455920 is about 134.9184692895.

It can be divided in two parts, 2455 and 920, that added together give a cube (3375 = 15³).

The spelling of 2455920 in words is "two million, four hundred fifty-five thousand, nine hundred twenty".