2705724 has 60 divisors (see below), whose sum is σ = 8090544. Its totient is φ = 772416.

The previous prime is 2705693. The next prime is 2705741. The reversal of 2705724 is 4275072.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1672 + ... + 2864.

2^2705724 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 2705724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4045272).

2705724 is an abundant number, since it is smaller than the sum of its proper divisors (5384820).

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

2705724 is a wasteful number, since it uses less digits than its factorization.

2705724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216 (or 1205 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2705724 is about 1644.9085080940. The cubic root of 2705724 is about 139.3459972363.

The spelling of 2705724 in words is "two million, seven hundred five thousand, seven hundred twenty-four".