140023440220 has 24 divisors (see below), whose sum is σ = 294124420800. Its totient is φ = 55995052992.

The previous prime is 140023440191. The next prime is 140023440233. The reversal of 140023440220 is 22044320041.

It is a happy number.

It is a super-2 number, since 2×140023440220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140023440191 and 140023440200.

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, 814855 + ... + 971614.

It is an arithmetic number, because the mean of its divisors is an integer number (12255184200).

Almost surely, 2^140023440220 is an apocalyptic number.

140023440220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140023440220 is an abundant number, since it is smaller than the sum of its proper divisors (154100980580).

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

140023440220 is a wasteful number, since it uses less digits than its factorization.

140023440220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790397 (or 1790395 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 140023440220 its reverse (22044320041), we get a palindrome (162067760261).

The spelling of 140023440220 in words is "one hundred forty billion, twenty-three million, four hundred forty thousand, two hundred twenty".