126697944 has 64 divisors (see below), whose sum is σ = 322358400. Its totient is φ = 41492736.

The previous prime is 126697939. The next prime is 126697969. The reversal of 126697944 is 449796621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 126697893 and 126697902.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 543652 + ... + 543884.

It is an arithmetic number, because the mean of its divisors is an integer number (5036850).

Almost surely, 2^126697944 is an apocalyptic number.

It is an amenable number.

126697944 is an abundant number, since it is smaller than the sum of its proper divisors (195660456).

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

126697944 is a wasteful number, since it uses less digits than its factorization.

126697944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 540 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 126697944 is about 11256.0181236528. The cubic root of 126697944 is about 502.2537512801.

The spelling of 126697944 in words is "one hundred twenty-six million, six hundred ninety-seven thousand, nine hundred forty-four".