1400140015240 has 16 divisors (see below), whose sum is σ = 3150315034380. Its totient is φ = 560056006080.

The previous prime is 1400140015201. The next prime is 1400140015247. The reversal of 1400140015240 is 425100410041.

It can be written as a sum of positive squares in 2 ways, for example, as 1223550124164 + 176589891076 = 1106142^2 + 420226^2 .

It is not an unprimeable number, because it can be changed into a prime (1400140015247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17501750151 + ... + 17501750230.

Almost surely, 2^{1400140015240} is an apocalyptic number.

1400140015240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1400140015240 is an abundant number, since it is smaller than the sum of its proper divisors (1750175019140).

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

1400140015240 is a wasteful number, since it uses less digits than its factorization.

1400140015240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35003500392 (or 35003500388 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 1400140015240 its reverse (425100410041), we get a palindrome (1825240425281).

The spelling of 1400140015240 in words is "one trillion, four hundred billion, one hundred forty million, fifteen thousand, two hundred forty".