126044440 has 64 divisors (see below), whose sum is σ = 295423200. Its totient is φ = 48340992.

The previous prime is 126044431. The next prime is 126044449. The reversal of 126044440 is 44440621.

It is an interprime number because it is at equal distance from previous prime (126044431) and next prime (126044449).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126044449) 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 15 ways as a sum of consecutive naturals, for example, 223599 + ... + 224161.

Almost surely, 2^126044440 is an apocalyptic number.

126044440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126044440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147711600).

126044440 is an abundant number, since it is smaller than the sum of its proper divisors (169378760).

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

126044440 is a wasteful number, since it uses less digits than its factorization.

126044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 126044440 is about 11226.9515007414. The cubic root of 126044440 is about 501.3887259760.

The spelling of 126044440 in words is "one hundred twenty-six million, forty-four thousand, four hundred forty".