126286638 has 16 divisors (see below), whose sum is σ = 253141200. Its totient is φ = 42000896.

The previous prime is 126286631. The next prime is 126286649. The reversal of 126286638 is 836682621.

It is a self number, because there is not a number n which added to its sum of digits gives 126286638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126286631) 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 7 ways as a sum of consecutive naturals, for example, 20745 + ... + 26132.

It is an arithmetic number, because the mean of its divisors is an integer number (15821325).

Almost surely, 2^126286638 is an apocalyptic number.

126286638 is an abundant number, since it is smaller than the sum of its proper divisors (126854562).

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

126286638 is a wasteful number, since it uses less digits than its factorization.

126286638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47331.

The product of its digits is 165888, while the sum is 42.

The square root of 126286638 is about 11237.7327784567. The cubic root of 126286638 is about 501.7096647631.

The spelling of 126286638 in words is "one hundred twenty-six million, two hundred eighty-six thousand, six hundred thirty-eight".