126556444 has 24 divisors (see below), whose sum is σ = 254733920. Its totient is φ = 53891136.

The previous prime is 126556433. The next prime is 126556447. The reversal of 126556444 is 444655621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126556447) 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, 9999 + ... + 18790.

Almost surely, 2^126556444 is an apocalyptic number.

126556444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126556444 is an abundant number, since it is smaller than the sum of its proper divisors (128177476).

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

126556444 is a wasteful number, since it uses less digits than its factorization.

126556444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28957 (or 28955 counting only the distinct ones).

The product of its digits is 115200, while the sum is 37.

The square root of 126556444 is about 11249.7308412246. The cubic root of 126556444 is about 502.0667043629.

The spelling of 126556444 in words is "one hundred twenty-six million, five hundred fifty-six thousand, four hundred forty-four".