2745000 has 120 divisors (see below), whose sum is σ = 9442290. Its totient is φ = 720000.

The previous prime is 2744969. The next prime is 2745011. The reversal of 2745000 is 5472.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 101124 + 2643876 = 318^2 + 1626^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 44970 + ... + 45030.

2^2745000 is an apocalyptic number.

2745000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4721145).

2745000 is an abundant number, since it is smaller than the sum of its proper divisors (6697290).

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

2745000 is a wasteful number, since it uses less digits than its factorization.

2745000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 2745000 is about 1656.8041525781. The cubic root of 2745000 is about 140.0170047372.

The spelling of 2745000 in words is "two million, seven hundred forty-five thousand".