1214440520340 has 48 divisors (see below), whose sum is σ = 3400636095360. Its totient is φ = 323831506560.

The previous prime is 1214440520327. The next prime is 1214440520341. The reversal of 1214440520340 is 430250444121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1214440520298 and 1214440520307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214440520341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 426681 + ... + 1615839.

It is an arithmetic number, because the mean of its divisors is an integer number (70846585320).

Almost surely, 2^{1214440520340} is an apocalyptic number.

1214440520340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214440520340 is an abundant number, since it is smaller than the sum of its proper divisors (2186195575020).

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

1214440520340 is a wasteful number, since it uses less digits than its factorization.

1214440520340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206192 (or 1206190 counting only the distinct ones).

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

Adding to 1214440520340 its reverse (430250444121), we get a palindrome (1644690964461).

The spelling of 1214440520340 in words is "one trillion, two hundred fourteen billion, four hundred forty million, five hundred twenty thousand, three hundred forty".