2877440 has 48 divisors (see below), whose sum is σ = 6928740. Its totient is φ = 1146880.

The previous prime is 2877419. The next prime is 2877443. The reversal of 2877440 is 447782.

2877440 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2876416 + 1024 = 1696^2 + 32^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 2877397 and 2877406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2877443) 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, 10100 + ... + 10380.

2^2877440 is an apocalyptic number.

2877440 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 2877440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3464370).

2877440 is an abundant number, since it is smaller than the sum of its proper divisors (4051300).

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

2877440 is an equidigital number, since it uses as much as digits as its factorization.

2877440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 2877440 is about 1696.3018599294. The cubic root of 2877440 is about 142.2335639103.

The spelling of 2877440 in words is "two million, eight hundred seventy-seven thousand, four hundred forty".