140440414442420 has 24 divisors (see below), whose sum is σ = 295049997653544. Its totient is φ = 56152332000896.

The previous prime is 140440414442351. The next prime is 140440414442443. The reversal of 140440414442420 is 24244414044041.

It can be written as a sum of positive squares in 4 ways, for example, as 13725498582436 + 126714915859984 = 3704794^2 + 11256772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1489562687 + ... + 1489656966.

It is an arithmetic number, because the mean of its divisors is an integer number (12293749902231).

Almost surely, 2^{140440414442420} is an apocalyptic number.

140440414442420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140440414442420 is an abundant number, since it is smaller than the sum of its proper divisors (154609583211124).

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

140440414442420 is a wasteful number, since it uses less digits than its factorization.

140440414442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979222019 (or 2979222017 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 38.

Adding to 140440414442420 its reverse (24244414044041), we get a palindrome (164684828486461).

The spelling of 140440414442420 in words is "one hundred forty trillion, four hundred forty billion, four hundred fourteen million, four hundred forty-two thousand, four hundred twenty".