2748864 has 56 divisors (see below), whose sum is σ = 7396480. Its totient is φ = 900864.

The previous prime is 2748859. The next prime is 2748919. The reversal of 2748864 is 4688472.

It is a super-3 number, since 3×2748864³ = 62313337935377989632, which contains 333 as substring.

It is a congruent number.

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, 19707 + ... + 19845.

It is an arithmetic number, because the mean of its divisors is an integer number (132080).

2^2748864 is an apocalyptic number.

2748864 is a gapful number since it is divisible by the number (24) 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 2748864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3698240).

2748864 is an abundant number, since it is smaller than the sum of its proper divisors (4647616).

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

2748864 is a wasteful number, since it uses less digits than its factorization.

2748864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 247 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 2748864 is about 1657.9698429103. The cubic root of 2748864 is about 140.0826722595.

The spelling of 2748864 in words is "two million, seven hundred forty-eight thousand, eight hundred sixty-four".