2491226 has 4 divisors (see below), whose sum is σ = 3736842. Its totient is φ = 1245612.

The previous prime is 2491211. The next prime is 2491243. The reversal of 2491226 is 6221942.

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., 1560001 + 931225 = 1249^2 + 965^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2491195 and 2491204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622805 + ... + 622808.

2^2491226 is an apocalyptic number.

2491226 is a deficient number, since it is larger than the sum of its proper divisors (1245616).

2491226 is a wasteful number, since it uses less digits than its factorization.

2491226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245615.

The product of its digits is 1728, while the sum is 26.

The square root of 2491226 is about 1578.3618089652. The cubic root of 2491226 is about 135.5619193863.

The spelling of 2491226 in words is "two million, four hundred ninety-one thousand, two hundred twenty-six".