2881340 has 48 divisors (see below), whose sum is σ = 7547904. Its totient is φ = 897600.

The previous prime is 2881337. The next prime is 2881343. The reversal of 2881340 is 431882.

It is an interprime number because it is at equal distance from previous prime (2881337) and next prime (2881343).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605 + ... + 2475.

It is an arithmetic number, because the mean of its divisors is an integer number (157248).

2^2881340 is an apocalyptic number.

2881340 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 2881340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3773952).

2881340 is an abundant number, since it is smaller than the sum of its proper divisors (4666564).

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

2881340 is a wasteful number, since it uses less digits than its factorization.

2881340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2881340 is about 1697.4510302215. The cubic root of 2881340 is about 142.2977946704.

The spelling of 2881340 in words is "two million, eight hundred eighty-one thousand, three hundred forty".