205426422 has 32 divisors (see below), whose sum is σ = 463324800. Its totient is φ = 67452264.

The previous prime is 205426391. The next prime is 205426427. The reversal of 205426422 is 224624502.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205426427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24772 + ... + 32007.

It is an arithmetic number, because the mean of its divisors is an integer number (14478900).

Almost surely, 2^205426422 is an apocalyptic number.

205426422 is an abundant number, since it is smaller than the sum of its proper divisors (257898378).

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

205426422 is a wasteful number, since it uses less digits than its factorization.

205426422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56857 (or 56851 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 205426422 is about 14332.7046296224. The cubic root of 205426422 is about 590.0454068281.

The spelling of 205426422 in words is "two hundred five million, four hundred twenty-six thousand, four hundred twenty-two".