2687040 has 112 divisors (see below), whose sum is σ = 9509760. Its totient is φ = 714240.

The previous prime is 2687039. The next prime is 2687059. The reversal of 2687040 is 407862.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2686995 and 2687013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8485 + ... + 8795.

2^2687040 is an apocalyptic number.

2687040 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 2687040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4754880).

2687040 is an abundant number, since it is smaller than the sum of its proper divisors (6822720).

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

2687040 is a wasteful number, since it uses less digits than its factorization.

2687040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2687040 is about 1639.2193263868. The cubic root of 2687040 is about 139.0245113167.

The spelling of 2687040 in words is "two million, six hundred eighty-seven thousand, forty".