2722616 has 32 divisors (see below), whose sum is σ = 5624640. Its totient is φ = 1227648.

The previous prime is 2722591. The next prime is 2722619. The reversal of 2722616 is 6162272.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722619) 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, 4610 + ... + 5166.

It is an arithmetic number, because the mean of its divisors is an integer number (175770).

2^2722616 is an apocalyptic number.

2722616 is a gapful number since it is divisible by the number (26) 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 2722616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812320).

2722616 is an abundant number, since it is smaller than the sum of its proper divisors (2902024).

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

2722616 is a wasteful number, since it uses less digits than its factorization.

2722616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623 (or 619 counting only the distinct ones).

The product of its digits is 2016, while the sum is 26.

The square root of 2722616 is about 1650.0351511407. The cubic root of 2722616 is about 139.6353777164.

Adding to 2722616 its reverse (6162272), we get a palindrome (8884888).

The spelling of 2722616 in words is "two million, seven hundred twenty-two thousand, six hundred sixteen".