126244140 has 72 divisors (see below), whose sum is σ = 388562160. Its totient is φ = 30602880.

The previous prime is 126244123. The next prime is 126244141. The reversal of 126244140 is 41442621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126244140.

It is not an unprimeable number, because it can be changed into a prime (126244141) 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 23 ways as a sum of consecutive naturals, for example, 1435 + ... + 15954.

Almost surely, 2^126244140 is an apocalyptic number.

126244140 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 126244140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194281080).

126244140 is an abundant number, since it is smaller than the sum of its proper divisors (262318020).

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

126244140 is a wasteful number, since it uses less digits than its factorization.

126244140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17423 (or 17410 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 126244140 is about 11235.8417575187. The cubic root of 126244140 is about 501.6533799763.

Adding to 126244140 its reverse (41442621), we get a palindrome (167686761).

The spelling of 126244140 in words is "one hundred twenty-six million, two hundred forty-four thousand, one hundred forty".