1240001403140 has 96 divisors (see below), whose sum is σ = 2641323965280. Its totient is φ = 488936964096.

The previous prime is 1240001403133. The next prime is 1240001403161. The reversal of 1240001403140 is 413041000421.

It can be written as a sum of positive squares in 16 ways, for example, as 482158029376 + 757843373764 = 694376^2 + 870542^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 867739946 + ... + 867741374.

It is an arithmetic number, because the mean of its divisors is an integer number (27513791305).

Almost surely, 2^{1240001403140} is an apocalyptic number.

1240001403140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240001403140 is an abundant number, since it is smaller than the sum of its proper divisors (1401322562140).

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

1240001403140 is a wasteful number, since it uses less digits than its factorization.

1240001403140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3001 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1240001403140 its reverse (413041000421), we get a palindrome (1653042403561).

The spelling of 1240001403140 in words is "one trillion, two hundred forty billion, one million, four hundred three thousand, one hundred forty".