126438726 has 16 divisors (see below), whose sum is σ = 257023728. Its totient is φ = 41455200.

The previous prime is 126438721. The next prime is 126438727. The reversal of 126438726 is 627834621.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126438721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172365 + ... + 173096.

It is an arithmetic number, because the mean of its divisors is an integer number (16063983).

Almost surely, 2^126438726 is an apocalyptic number.

126438726 is an abundant number, since it is smaller than the sum of its proper divisors (130585002).

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

126438726 is a wasteful number, since it uses less digits than its factorization.

126438726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345527.

The product of its digits is 96768, while the sum is 39.

The square root of 126438726 is about 11244.4975877093. The cubic root of 126438726 is about 501.9109882760.

The spelling of 126438726 in words is "one hundred twenty-six million, four hundred thirty-eight thousand, seven hundred twenty-six".