1240041552420 has 48 divisors (see below), whose sum is σ = 3787763289408. Its totient is φ = 300616133760.

The previous prime is 1240041552403. The next prime is 1240041552437. The reversal of 1240041552420 is 242551400421.

It is an interprime number because it is at equal distance from previous prime (1240041552403) and next prime (1240041552437).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 939424759 + ... + 939426078.

It is an arithmetic number, because the mean of its divisors is an integer number (78911735196).

Almost surely, 2^{1240041552420} is an apocalyptic number.

1240041552420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240041552420 is an abundant number, since it is smaller than the sum of its proper divisors (2547721736988).

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

1240041552420 is a wasteful number, since it uses less digits than its factorization.

1240041552420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878850860 (or 1878850858 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 1240041552420 its reverse (242551400421), we get a palindrome (1482592952841).

The spelling of 1240041552420 in words is "one trillion, two hundred forty billion, forty-one million, five hundred fifty-two thousand, four hundred twenty".