126708840 has 128 divisors (see below), whose sum is σ = 440812800. Its totient is φ = 32313600.

The previous prime is 126708809. The next prime is 126708847. The reversal of 126708840 is 48807621.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 126708795 and 126708804.

It is not an unprimeable number, because it can be changed into a prime (126708847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22290 + ... + 27390.

It is an arithmetic number, because the mean of its divisors is an integer number (3443850).

Almost surely, 2^126708840 is an apocalyptic number.

126708840 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 126708840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220406400).

126708840 is an abundant number, since it is smaller than the sum of its proper divisors (314103960).

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

126708840 is a wasteful number, since it uses less digits than its factorization.

126708840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144 (or 5134 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 126708840 is about 11256.5021209966. The cubic root of 126708840 is about 502.2681487776.

The spelling of 126708840 in words is "one hundred twenty-six million, seven hundred eight thousand, eight hundred forty".