2740780 has 24 divisors (see below), whose sum is σ = 6578208. Its totient is φ = 939648.

The previous prime is 2740763. The next prime is 2740799. The reversal of 2740780 is 870472.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9649 + ... + 9928.

It is an arithmetic number, because the mean of its divisors is an integer number (274092).

2^2740780 is an apocalyptic number.

2740780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2740780 is an abundant number, since it is smaller than the sum of its proper divisors (3837428).

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

2740780 is a wasteful number, since it uses less digits than its factorization.

2740780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19593 (or 19591 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 2740780 is about 1655.5301265758. The cubic root of 2740780 is about 139.9452166608.

The spelling of 2740780 in words is "two million, seven hundred forty thousand, seven hundred eighty".