140444420020 has 48 divisors (see below), whose sum is σ = 310511376000. Its totient is φ = 53211565440.

The previous prime is 140444420009. The next prime is 140444420027. The reversal of 140444420020 is 20024444041.

It is a super-2 number, since 2×140444420020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140444420027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2325810 + ... + 2385430.

It is an arithmetic number, because the mean of its divisors is an integer number (6468987000).

Almost surely, 2^140444420020 is an apocalyptic number.

140444420020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140444420020 is an abundant number, since it is smaller than the sum of its proper divisors (170066955980).

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

140444420020 is a wasteful number, since it uses less digits than its factorization.

140444420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65848 (or 65846 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 140444420020 its reverse (20024444041), we get a palindrome (160468864061).

The spelling of 140444420020 in words is "one hundred forty billion, four hundred forty-four million, four hundred twenty thousand, twenty".