2740428 has 18 divisors (see below), whose sum is σ = 6927284. Its totient is φ = 913464.

The previous prime is 2740421. The next prime is 2740453. The reversal of 2740428 is 8240472.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (2740421) 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, 38026 + ... + 38097.

2^2740428 is an apocalyptic number.

It is an amenable number.

2740428 is an abundant number, since it is smaller than the sum of its proper divisors (4186856).

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

2740428 is a wasteful number, since it uses less digits than its factorization.

2740428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76133 (or 76128 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 2740428 is about 1655.4238128044. The cubic root of 2740428 is about 139.9392253219.

The spelling of 2740428 in words is "two million, seven hundred forty thousand, four hundred twenty-eight".