2863920 has 40 divisors (see below), whose sum is σ = 8878896. Its totient is φ = 763648.

The previous prime is 2863909. The next prime is 2863921. The reversal of 2863920 is 293682.

2863920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2863921) 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, 5727 + ... + 6206.

2^2863920 is an apocalyptic number.

2863920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2863920 is an abundant number, since it is smaller than the sum of its proper divisors (6014976).

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

2863920 is a wasteful number, since it uses less digits than its factorization.

2863920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11949 (or 11943 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2863920 is about 1692.3120279665. The cubic root of 2863920 is about 142.0104468939.

The spelling of 2863920 in words is "two million, eight hundred sixty-three thousand, nine hundred twenty".