2891080 has 16 divisors (see below), whose sum is σ = 6505020. Its totient is φ = 1156416.

The previous prime is 2891051. The next prime is 2891081. The reversal of 2891080 is 801982.

It can be written as a sum of positive squares in 2 ways, for example, as 2802276 + 88804 = 1674^2 + 298^2 .

It is not an unprimeable number, because it can be changed into a prime (2891081) 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, 36099 + ... + 36178.

2^2891080 is an apocalyptic number.

2891080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2891080 is an abundant number, since it is smaller than the sum of its proper divisors (3613940).

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

2891080 is a wasteful number, since it uses less digits than its factorization.

2891080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72288 (or 72284 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 2891080 is about 1700.3176173880. The cubic root of 2891080 is about 142.4579541490.

It can be divided in two parts, 289 and 1080, that added together give a square (1369 = 37²).

The spelling of 2891080 in words is "two million, eight hundred ninety-one thousand, eighty".