2742720 has 56 divisors (see below), whose sum is σ = 8711184. Its totient is φ = 731136.

The previous prime is 2742703. The next prime is 2742721. The reversal of 2742720 is 272472.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469 + ... + 2388.

2^2742720 is an apocalyptic number.

2742720 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 2742720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4355592).

2742720 is an abundant number, since it is smaller than the sum of its proper divisors (5968464).

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

2742720 is a wasteful number, since it uses less digits than its factorization.

2742720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877 (or 2867 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 2742720 is about 1656.1159379705. The cubic root of 2742720 is about 139.9782279068.

The spelling of 2742720 in words is "two million, seven hundred forty-two thousand, seven hundred twenty".