262640226 has 8 divisors (see below), whose sum is σ = 525280464. Its totient is φ = 87546740.

The previous prime is 262640221. The next prime is 262640227. The reversal of 262640226 is 622046262.

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

262640226 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 262640193 and 262640202.

It is not an unprimeable number, because it can be changed into a prime (262640221) 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, 21886680 + ... + 21886691.

It is an arithmetic number, because the mean of its divisors is an integer number (65660058).

Almost surely, 2^262640226 is an apocalyptic number.

262640226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

262640226 is a wasteful number, since it uses less digits than its factorization.

262640226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43773376.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 262640226 is about 16206.1786365571. The cubic root of 262640226 is about 640.4035752101.

Adding to 262640226 its reverse (622046262), we get a palindrome (884686488).

The spelling of 262640226 in words is "two hundred sixty-two million, six hundred forty thousand, two hundred twenty-six".