2087920 has 20 divisors (see below), whose sum is σ = 4854600. Its totient is φ = 835136.

The previous prime is 2087909. The next prime is 2087927. The reversal of 2087920 is 297802.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12970 + ... + 13129.

It is an arithmetic number, because the mean of its divisors is an integer number (242730).

2^2087920 is an apocalyptic number.

2087920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2087920 is an abundant number, since it is smaller than the sum of its proper divisors (2766680).

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

2087920 is a wasteful number, since it uses less digits than its factorization.

2087920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26112 (or 26106 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2087920 is about 1444.9636673633. The cubic root of 2087920 is about 127.8118981904.

It can be divided in two parts, 208 and 7920, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 2087920 in words is "two million, eighty-seven thousand, nine hundred twenty".