126286420 has 24 divisors (see below), whose sum is σ = 285602184. Its totient is φ = 46628736.

The previous prime is 126286417. The next prime is 126286441. The reversal of 126286420 is 24682621.

It can be written as a sum of positive squares in 4 ways, for example, as 2676496 + 123609924 = 1636^2 + 11118^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242599 + ... + 243118.

It is an arithmetic number, because the mean of its divisors is an integer number (11900091).

Almost surely, 2^126286420 is an apocalyptic number.

126286420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126286420 is an abundant number, since it is smaller than the sum of its proper divisors (159315764).

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

126286420 is a wasteful number, since it uses less digits than its factorization.

126286420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485739 (or 485737 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 126286420 is about 11237.7230789871. The cubic root of 126286420 is about 501.7093760739.

The spelling of 126286420 in words is "one hundred twenty-six million, two hundred eighty-six thousand, four hundred twenty".