2741780 has 12 divisors (see below), whose sum is σ = 5757780. Its totient is φ = 1096704.

The previous prime is 2741779. The next prime is 2741797. The reversal of 2741780 is 871472.

It can be written as a sum of positive squares in 2 ways, for example, as 586756 + 2155024 = 766^2 + 1468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68525 + ... + 68564.

It is an arithmetic number, because the mean of its divisors is an integer number (479815).

2^2741780 is an apocalyptic number.

2741780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2741780 is an abundant number, since it is smaller than the sum of its proper divisors (3016000).

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

2741780 is a wasteful number, since it uses less digits than its factorization.

2741780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137098 (or 137096 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 2741780 is about 1655.8321170940. The cubic root of 2741780 is about 139.9622347116.

The spelling of 2741780 in words is "two million, seven hundred forty-one thousand, seven hundred eighty".