2722518 has 16 divisors (see below), whose sum is σ = 6050160. Its totient is φ = 907488.

The previous prime is 2722507. The next prime is 2722541. The reversal of 2722518 is 8152272.

2722518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 2722491 and 2722500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25155 + ... + 25262.

It is an arithmetic number, because the mean of its divisors is an integer number (378135).

2^2722518 is an apocalyptic number.

2722518 is an abundant number, since it is smaller than the sum of its proper divisors (3327642).

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

2722518 is a wasteful number, since it uses less digits than its factorization.

2722518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50428 (or 50422 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 2722518 is about 1650.0054545364. The cubic root of 2722518 is about 139.6337023141.

Subtracting from 2722518 its product of digits (2240), we obtain a triangular number (2720278 = T₂₃₃₂).

It can be divided in two parts, 2722 and 518, that added together give a triangular number (3240 = T₈₀).

The spelling of 2722518 in words is "two million, seven hundred twenty-two thousand, five hundred eighteen".