2591980 has 36 divisors (see below), whose sum is σ = 5760720. Its totient is φ = 979488.

The previous prime is 2591971. The next prime is 2591987. The reversal of 2591980 is 891952.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2591987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7041 + ... + 7399.

It is an arithmetic number, because the mean of its divisors is an integer number (160020).

2^2591980 is an apocalyptic number.

2591980 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 2591980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880360).

2591980 is an abundant number, since it is smaller than the sum of its proper divisors (3168740).

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

2591980 is a wasteful number, since it uses less digits than its factorization.

2591980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 2591980 is about 1609.9627324879. The cubic root of 2591980 is about 137.3653557986.

The spelling of 2591980 in words is "two million, five hundred ninety-one thousand, nine hundred eighty".