126206420 has 24 divisors (see below), whose sum is σ = 265423200. Its totient is φ = 50408352.

The previous prime is 126206401. The next prime is 126206429. The reversal of 126206420 is 24602621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126206429) 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, 10511 + ... + 19049.

It is an arithmetic number, because the mean of its divisors is an integer number (11059300).

Almost surely, 2^126206420 is an apocalyptic number.

126206420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126206420 is an abundant number, since it is smaller than the sum of its proper divisors (139216780).

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

126206420 is a wasteful number, since it uses less digits than its factorization.

126206420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9287 (or 9285 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 126206420 is about 11234.1630751917. The cubic root of 126206420 is about 501.6034126395.

The spelling of 126206420 in words is "one hundred twenty-six million, two hundred six thousand, four hundred twenty".