2720790 has 40 divisors (see below), whose sum is σ = 7318080. Its totient is φ = 725328.

The previous prime is 2720789. The next prime is 2720797. The reversal of 2720790 is 970272.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720797) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 870 + ... + 2489.

It is an arithmetic number, because the mean of its divisors is an integer number (182952).

2^2720790 is an apocalyptic number.

2720790 is an abundant number, since it is smaller than the sum of its proper divisors (4597290).

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

2720790 is a wasteful number, since it uses less digits than its factorization.

2720790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 2720790 is about 1649.4817367889. The cubic root of 2720790 is about 139.6041539200.

The spelling of 2720790 in words is "two million, seven hundred twenty thousand, seven hundred ninety".