2723426 has 4 divisors (see below), whose sum is σ = 4085142. Its totient is φ = 1361712.

The previous prime is 2723401. The next prime is 2723431. The reversal of 2723426 is 6243272.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2719201 + 4225 = 1649^2 + 65^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2723395 and 2723404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680855 + ... + 680858.

2^2723426 is an apocalyptic number.

2723426 is a deficient number, since it is larger than the sum of its proper divisors (1361716).

2723426 is a wasteful number, since it uses less digits than its factorization.

2723426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361715.

The product of its digits is 4032, while the sum is 26.

The square root of 2723426 is about 1650.2805822041. The cubic root of 2723426 is about 139.6492238900.

Adding to 2723426 its reverse (6243272), we get a palindrome (8966698).

The spelling of 2723426 in words is "two million, seven hundred twenty-three thousand, four hundred twenty-six".