1240401443052 has 96 divisors (see below), whose sum is σ = 3051930631680. Its totient is φ = 391344307200.

The previous prime is 1240401443027. The next prime is 1240401443069. The reversal of 1240401443052 is 2503441040421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10242052 + ... + 10362452.

It is an arithmetic number, because the mean of its divisors is an integer number (31790944080).

Almost surely, 2^{1240401443052} is an apocalyptic number.

1240401443052 is a gapful number since it is divisible by the number (12) 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 1240401443052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1525965315840).

1240401443052 is an abundant number, since it is smaller than the sum of its proper divisors (1811529188628).

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

1240401443052 is a wasteful number, since it uses less digits than its factorization.

1240401443052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120823 (or 120821 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 1240401443052 its reverse (2503441040421), we get a palindrome (3743842483473).

The spelling of 1240401443052 in words is "one trillion, two hundred forty billion, four hundred one million, four hundred forty-three thousand, fifty-two".