2749426 has 4 divisors (see below), whose sum is σ = 4124142. Its totient is φ = 1374712.

The previous prime is 2749391. The next prime is 2749441. The reversal of 2749426 is 6249472.

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., 2325625 + 423801 = 1525^2 + 651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2749391 and 2749400.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687355 + ... + 687358.

2^2749426 is an apocalyptic number.

2749426 is a deficient number, since it is larger than the sum of its proper divisors (1374716).

2749426 is a wasteful number, since it uses less digits than its factorization.

2749426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374715.

The product of its digits is 24192, while the sum is 34.

The square root of 2749426 is about 1658.1393186340. The cubic root of 2749426 is about 140.0922181540.

The spelling of 2749426 in words is "two million, seven hundred forty-nine thousand, four hundred twenty-six".