126722444 has 24 divisors (see below), whose sum is σ = 224060928. Its totient is φ = 62709120.

The previous prime is 126722443. The next prime is 126722459. The reversal of 126722444 is 444227621.

It is a self number, because there is not a number n which added to its sum of digits gives 126722444.

It is not an unprimeable number, because it can be changed into a prime (126722441) 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, 277064 + ... + 277520.

It is an arithmetic number, because the mean of its divisors is an integer number (9335872).

Almost surely, 2^126722444 is an apocalyptic number.

It is an amenable number.

126722444 is a deficient number, since it is larger than the sum of its proper divisors (97338484).

126722444 is a wasteful number, since it uses less digits than its factorization.

126722444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025 (or 1023 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 126722444 is about 11257.1063777509. The cubic root of 126722444 is about 502.2861233493.

The spelling of 126722444 in words is "one hundred twenty-six million, seven hundred twenty-two thousand, four hundred forty-four".