2158080 has 80 divisors (see below), whose sum is σ = 6923664. Its totient is φ = 573440.

The previous prime is 2158073. The next prime is 2158081. The reversal of 2158080 is 808512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2158080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2158081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7540 + ... + 7820.

2^2158080 is an apocalyptic number.

2158080 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 2158080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3461832).

2158080 is an abundant number, since it is smaller than the sum of its proper divisors (4765584).

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

2158080 is an equidigital number, since it uses as much as digits as its factorization.

2158080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 2158080 is about 1469.0405031857. The cubic root of 2158080 is about 129.2277689867.

The spelling of 2158080 in words is "two million, one hundred fifty-eight thousand, eighty".