2722438 has 8 divisors (see below), whose sum is σ = 4091688. Its totient is φ = 1358544.

The previous prime is 2722427. The next prime is 2722439. The reversal of 2722438 is 8342272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2722439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 370 + ... + 2362.

It is an arithmetic number, because the mean of its divisors is an integer number (511461).

2^2722438 is an apocalyptic number.

2722438 is a deficient number, since it is larger than the sum of its proper divisors (1369250).

2722438 is a wasteful number, since it uses less digits than its factorization.

2722438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678.

The product of its digits is 5376, while the sum is 28.

The square root of 2722438 is about 1649.9812120142. The cubic root of 2722438 is about 139.6323346090.

It can be divided in two parts, 2722 and 438, that added together give a triangular number (3160 = T₇₉).

The spelling of 2722438 in words is "two million, seven hundred twenty-two thousand, four hundred thirty-eight".