2765140 has 24 divisors (see below), whose sum is σ = 6636672. Its totient is φ = 948000.

The previous prime is 2765131. The next prime is 2765143. The reversal of 2765140 is 415672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2765143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9736 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (276528).

2^2765140 is an apocalyptic number.

2765140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2765140 is an abundant number, since it is smaller than the sum of its proper divisors (3871532).

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

2765140 is a wasteful number, since it uses less digits than its factorization.

2765140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19767 (or 19765 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2765140 is about 1662.8710112333. The cubic root of 2765140 is about 140.3586044740.

The spelling of 2765140 in words is "two million, seven hundred sixty-five thousand, one hundred forty".