2745380 has 24 divisors (see below), whose sum is σ = 6289920. Its totient is φ = 998240.

The previous prime is 2745377. The next prime is 2745397. The reversal of 2745380 is 835472.

It is a happy number.

It is a super-2 number, since 2×2745380² = 15074222688800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6020 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

2^2745380 is an apocalyptic number.

2745380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2745380 is an abundant number, since it is smaller than the sum of its proper divisors (3544540).

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

2745380 is a wasteful number, since it uses less digits than its factorization.

2745380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12499 (or 12497 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2745380 is about 1656.9188272212. The cubic root of 2745380 is about 140.0234654545.

It can be divided in two parts, 2745 and 380, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2745380 in words is "two million, seven hundred forty-five thousand, three hundred eighty".