120126440 has 96 divisors (see below), whose sum is σ = 317157120. Its totient is φ = 40828032.

The previous prime is 120126431. The next prime is 120126451. The reversal of 120126440 is 44621021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 327137 + ... + 327503.

It is an arithmetic number, because the mean of its divisors is an integer number (3303720).

Almost surely, 2^120126440 is an apocalyptic number.

120126440 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 120126440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158578560).

120126440 is an abundant number, since it is smaller than the sum of its proper divisors (197030680).

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

120126440 is a wasteful number, since it uses less digits than its factorization.

120126440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 120126440 is about 10960.2208006956. The cubic root of 120126440 is about 493.4155917538.

Adding to 120126440 its reverse (44621021), we get a palindrome (164747461).

The spelling of 120126440 in words is "one hundred twenty million, one hundred twenty-six thousand, four hundred forty".