426781222 has 8 divisors (see below), whose sum is σ = 731624976. Its totient is φ = 182906232.

The previous prime is 426781219. The next prime is 426781231. The reversal of 426781222 is 222187624.

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

It is a super-2 number, since 2×426781222² = 364284422903626568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15242173 + ... + 15242200.

It is an arithmetic number, because the mean of its divisors is an integer number (91453122).

Almost surely, 2^426781222 is an apocalyptic number.

426781222 is a deficient number, since it is larger than the sum of its proper divisors (304843754).

426781222 is a wasteful number, since it uses less digits than its factorization.

426781222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30484382.

The product of its digits is 21504, while the sum is 34.

The square root of 426781222 is about 20658.6839367855. The cubic root of 426781222 is about 752.8961925108.

The spelling of 426781222 in words is "four hundred twenty-six million, seven hundred eighty-one thousand, two hundred twenty-two".