2760840 has 48 divisors (see below), whose sum is σ = 8973900. Its totient is φ = 736128.

The previous prime is 2760839. The next prime is 2760847. The reversal of 2760840 is 480672.

It can be written as a sum of positive squares in 2 ways, for example, as 2643876 + 116964 = 1626^2 + 342^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2760847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3475 + ... + 4194.

2^2760840 is an apocalyptic number.

2760840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2760840 is an abundant number, since it is smaller than the sum of its proper divisors (6213060).

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

2760840 is a wasteful number, since it uses less digits than its factorization.

2760840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686 (or 7679 counting only the distinct ones).

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

The square root of 2760840 is about 1661.5775636425. The cubic root of 2760840 is about 140.2858106769.

It can be divided in two parts, 2760 and 840, that added together give a square (3600 = 60²).

The spelling of 2760840 in words is "two million, seven hundred sixty thousand, eight hundred forty".