1240113042 has 96 divisors (see below), whose sum is σ = 3305038464. Its totient is φ = 327974400.

The previous prime is 1240113041. The next prime is 1240113067. The reversal of 1240113042 is 2403110421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1240113041) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 125917 + ... + 135407.

It is an arithmetic number, because the mean of its divisors is an integer number (34427484).

Almost surely, 2^1240113042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240113042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1652519232).

1240113042 is an abundant number, since it is smaller than the sum of its proper divisors (2064925422).

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

1240113042 is a wasteful number, since it uses less digits than its factorization.

1240113042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9584 (or 9581 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1240113042 is about 35215.2387752802. The cubic root of 1240113042 is about 1074.3697165591.

Adding to 1240113042 its reverse (2403110421), we get a palindrome (3643223463).

The spelling of 1240113042 in words is "one billion, two hundred forty million, one hundred thirteen thousand, forty-two".