2745900 has 108 divisors (see below), whose sum is σ = 9004632. Its totient is φ = 725760.

The previous prime is 2745863. The next prime is 2745907. The reversal of 2745900 is 95472.

2745900 is a `hidden beast` number, since 2 + 74 + 590 + 0 = 666.

2745900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2745907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24244 + ... + 24356.

2^2745900 is an apocalyptic number.

2745900 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 2745900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4502316).

2745900 is an abundant number, since it is smaller than the sum of its proper divisors (6258732).

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

2745900 is a wasteful number, since it uses less digits than its factorization.

2745900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2745900 is about 1657.0757375570. The cubic root of 2745900 is about 140.0323054700.

The spelling of 2745900 in words is "two million, seven hundred forty-five thousand, nine hundred".