2748564 has 72 divisors (see below), whose sum is σ = 8561280. Its totient is φ = 724032.

The previous prime is 2748563. The next prime is 2748583. The reversal of 2748564 is 4658472.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁹ + 7³ + 4⁷ + 8 + 5⁵ + 6⁸ + 4¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2857 + ... + 3695.

2^2748564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2748564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4280640).

2748564 is an abundant number, since it is smaller than the sum of its proper divisors (5812716).

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

2748564 is a wasteful number, since it uses less digits than its factorization.

2748564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 864 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2748564 is about 1657.8793683498. The cubic root of 2748564 is about 140.0775760537.

The spelling of 2748564 in words is "two million, seven hundred forty-eight thousand, five hundred sixty-four".