2042040031240 has 128 divisors (see below), whose sum is σ = 5038459873920. Its totient is φ = 738684979200.

The previous prime is 2042040031189. The next prime is 2042040031243. The reversal of 2042040031240 is 421300402402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2042040031243) 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 31 ways as a sum of consecutive naturals, for example, 263383204 + ... + 263390956.

It is an arithmetic number, because the mean of its divisors is an integer number (39362967765).

Almost surely, 2^{2042040031240} is an apocalyptic number.

2042040031240 is a gapful number since it is divisible by the number (20) 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 2042040031240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2519229936960).

2042040031240 is an abundant number, since it is smaller than the sum of its proper divisors (2996419842680).

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

2042040031240 is a wasteful number, since it uses less digits than its factorization.

2042040031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823 (or 10819 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 2042040031240 its reverse (421300402402), we get a palindrome (2463340433642).

The spelling of 2042040031240 in words is "two trillion, forty-two billion, forty million, thirty-one thousand, two hundred forty".