2605226 has 16 divisors (see below), whose sum is σ = 4255944. Its totient is φ = 1188864.

The previous prime is 2605201. The next prime is 2605231. The reversal of 2605226 is 6225062.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2356225 + 249001 = 1535^2 + 499^2 .

It is a super-2 number, since 2×2605226² = 13574405022152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2006 + ... + 3038.

2^2605226 is an apocalyptic number.

2605226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2605226 is a deficient number, since it is larger than the sum of its proper divisors (1650718).

2605226 is a wasteful number, since it uses less digits than its factorization.

2605226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2605226 is about 1614.0712499763. The cubic root of 2605226 is about 137.5989546635.

The spelling of 2605226 in words is "two million, six hundred five thousand, two hundred twenty-six".