2743680 has 64 divisors (see below), whose sum is σ = 8751600. Its totient is φ = 731136.

The previous prime is 2743673. The next prime is 2743691. The reversal of 2743680 is 863472.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

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, 1206 + ... + 2634.

2^2743680 is an apocalyptic number.

2743680 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 2743680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4375800).

2743680 is an abundant number, since it is smaller than the sum of its proper divisors (6007920).

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

2743680 is a wasteful number, since it uses less digits than its factorization.

2743680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1439 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 2743680 is about 1656.4057473940. The cubic root of 2743680 is about 139.9945576116.

The spelling of 2743680 in words is "two million, seven hundred forty-three thousand, six hundred eighty".