2651880 has 192 divisors, whose sum is σ = 10342080. Its totient is φ = 537600.

The previous prime is 2651867. The next prime is 2651893. The reversal of 2651880 is 881562.

2651880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2651867) and next prime (2651893).

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 64660 + ... + 64700.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2^2651880 is an apocalyptic number.

2651880 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 2651880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5171040).

2651880 is an abundant number, since it is smaller than the sum of its proper divisors (7690200).

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

2651880 is a wasteful number, since it uses less digits than its factorization.

2651880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2651880 is about 1628.4593946427. The cubic root of 2651880 is about 138.4154671032.

It can be divided in two parts, 265 and 1880, that added together give a triangular number (2145 = T₆₅).

The spelling of 2651880 in words is "two million, six hundred fifty-one thousand, eight hundred eighty".