1240860126 has 64 divisors (see below), whose sum is σ = 2828722176. Its totient is φ = 359455200.

The previous prime is 1240860079. The next prime is 1240860133. The reversal of 1240860126 is 6210680421.

It is a junction number, because it is equal to n+sod(n) for n = 1240860093 and 1240860102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166165 + ... + 173471.

It is an arithmetic number, because the mean of its divisors is an integer number (44198784).

Almost surely, 2^1240860126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240860126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414361088).

1240860126 is an abundant number, since it is smaller than the sum of its proper divisors (1587862050).

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

1240860126 is a wasteful number, since it uses less digits than its factorization.

1240860126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7437.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1240860126 is about 35225.8445746869. The cubic root of 1240860126 is about 1074.5854182122.

The spelling of 1240860126 in words is "one billion, two hundred forty million, eight hundred sixty thousand, one hundred twenty-six".