126576644 has 12 divisors (see below), whose sum is σ = 224313600. Its totient is φ = 62487048.

The previous prime is 126576643. The next prime is 126576673. The reversal of 126576644 is 446675621.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (126576643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199964 + ... + 200595.

It is an arithmetic number, because the mean of its divisors is an integer number (18692800).

Almost surely, 2^126576644 is an apocalyptic number.

It is an amenable number.

126576644 is a deficient number, since it is larger than the sum of its proper divisors (97736956).

126576644 is a wasteful number, since it uses less digits than its factorization.

126576644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400642 (or 400640 counting only the distinct ones).

The product of its digits is 241920, while the sum is 41.

The square root of 126576644 is about 11250.6286046603. The cubic root of 126576644 is about 502.0934149951.

The spelling of 126576644 in words is "one hundred twenty-six million, five hundred seventy-six thousand, six hundred forty-four".