2745810 has 24 divisors (see below), whose sum is σ = 7139340. Its totient is φ = 732192.

The previous prime is 2745797. The next prime is 2745829. The reversal of 2745810 is 185472.

It can be written as a sum of positive squares in 2 ways, for example, as 2223081 + 522729 = 1491^2 + 723^2 .

It is a super-2 number, since 2×2745810² = 15078945112200, which contains 22 as substring.

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 an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15165 + ... + 15344.

2^2745810 is an apocalyptic number.

2745810 is an abundant number, since it is smaller than the sum of its proper divisors (4393530).

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

2745810 is a wasteful number, since it uses less digits than its factorization.

2745810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30522 (or 30519 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 2745810 is about 1657.0485810621. The cubic root of 2745810 is about 140.0307755472.

It can be divided in two parts, 274 and 5810, that added together give a square (6084 = 78²).

The spelling of 2745810 in words is "two million, seven hundred forty-five thousand, eight hundred ten".