2745378 has 24 divisors (see below), whose sum is σ = 6088368. Its totient is φ = 893592.

The previous prime is 2745377. The next prime is 2745397. The reversal of 2745378 is 8735472.

It is not an unprimeable number, because it can be changed into a prime (2745371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000 + ... + 2547.

It is an arithmetic number, because the mean of its divisors is an integer number (253682).

2^2745378 is an apocalyptic number.

2745378 is an abundant number, since it is smaller than the sum of its proper divisors (3342990).

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

2745378 is a wasteful number, since it uses less digits than its factorization.

2745378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598 (or 3595 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 2745378 is about 1656.9182236912. The cubic root of 2745378 is about 140.0234314523.

The spelling of 2745378 in words is "two million, seven hundred forty-five thousand, three hundred seventy-eight".