2775480 has 64 divisors (see below), whose sum is σ = 8445600. Its totient is φ = 729600.

The previous prime is 2775469. The next prime is 2775499. The reversal of 2775480 is 845772.

2775480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 12006 + ... + 12234.

2^2775480 is an apocalyptic number.

2775480 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 2775480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4222800).

2775480 is an abundant number, since it is smaller than the sum of its proper divisors (5670120).

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

2775480 is a wasteful number, since it uses less digits than its factorization.

2775480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 2775480 is about 1665.9771907202. The cubic root of 2775480 is about 140.5333397745.

The spelling of 2775480 in words is "two million, seven hundred seventy-five thousand, four hundred eighty".