2770128 has 30 divisors (see below), whose sum is σ = 7752914. Its totient is φ = 923328.

The previous prime is 2770121. The next prime is 2770169. The reversal of 2770128 is 8210772.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 898704 = 1368^2 + 948^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2770121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9475 + ... + 9762.

2^2770128 is an apocalyptic number.

It is an amenable number.

2770128 is an abundant number, since it is smaller than the sum of its proper divisors (4982786).

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

2770128 is a wasteful number, since it uses less digits than its factorization.

2770128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251 (or 19242 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 2770128 is about 1664.3701511383. The cubic root of 2770128 is about 140.4429507962.

The spelling of 2770128 in words is "two million, seven hundred seventy thousand, one hundred twenty-eight".