2687380 has 12 divisors (see below), whose sum is σ = 5643540. Its totient is φ = 1074944.

The previous prime is 2687357. The next prime is 2687383. The reversal of 2687380 is 837862.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1179396 + 1507984 = 1086^2 + 1228^2 .

It is a super-2 number, since 2×2687380² = 14444022528800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2687383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67165 + ... + 67204.

It is an arithmetic number, because the mean of its divisors is an integer number (470295).

2^2687380 is an apocalyptic number.

2687380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2687380 is an abundant number, since it is smaller than the sum of its proper divisors (2956160).

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

2687380 is a wasteful number, since it uses less digits than its factorization.

2687380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134378 (or 134376 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2687380 is about 1639.3230310101. The cubic root of 2687380 is about 139.0303748121.

The spelling of 2687380 in words is "two million, six hundred eighty-seven thousand, three hundred eighty".