2721552 has 60 divisors (see below), whose sum is σ = 7387920. Its totient is φ = 863040.

The previous prime is 2721533. The next prime is 2721553. The reversal of 2721552 is 2551272.

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

It is not an unprimeable number, because it can be changed into a prime (2721553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46099 + ... + 46157.

It is an arithmetic number, because the mean of its divisors is an integer number (123132).

2^2721552 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 2721552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3693960).

2721552 is an abundant number, since it is smaller than the sum of its proper divisors (4666368).

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

2721552 is a wasteful number, since it uses less digits than its factorization.

2721552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 95 counting only the distinct ones).

The product of its digits is 1400, while the sum is 24.

The square root of 2721552 is about 1649.7127022606. The cubic root of 2721552 is about 139.6171854826.

The spelling of 2721552 in words is "two million, seven hundred twenty-one thousand, five hundred fifty-two".