2721360 has 160 divisors (see below), whose sum is σ = 9642240. Its totient is φ = 630784.

The previous prime is 2721319. The next prime is 2721371. The reversal of 2721360 is 631272.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93826 + ... + 93854.

It is an arithmetic number, because the mean of its divisors is an integer number (60264).

2^2721360 is an apocalyptic number.

2721360 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 2721360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4821120).

2721360 is an abundant number, since it is smaller than the sum of its proper divisors (6920880).

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

2721360 is a wasteful number, since it uses less digits than its factorization.

2721360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2721360 is about 1649.6545092837. The cubic root of 2721360 is about 139.6139021686.

It can be divided in two parts, 2721 and 360, that added together give a triangular number (3081 = T₇₈).

The spelling of 2721360 in words is "two million, seven hundred twenty-one thousand, three hundred sixty".