140464319220 has 72 divisors (see below), whose sum is σ = 426179819520. Its totient is φ = 37447945920.

The previous prime is 140464319173. The next prime is 140464319227. The reversal of 140464319220 is 22913464041.

140464319220 is a `hidden beast` number, since 1 + 4 + 0 + 4 + 643 + 1 + 9 + 2 + 2 + 0 = 666.

It is a super-2 number, since 2×140464319220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140464319227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 654805 + ... + 842435.

It is an arithmetic number, because the mean of its divisors is an integer number (5919164160).

Almost surely, 2^140464319220 is an apocalyptic number.

140464319220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140464319220 is an abundant number, since it is smaller than the sum of its proper divisors (285715500300).

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

140464319220 is a wasteful number, since it uses less digits than its factorization.

140464319220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191805 (or 191800 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

It can be divided in two parts, 140464 and 319220, that added together give a square (459684 = 678²).

The spelling of 140464319220 in words is "one hundred forty billion, four hundred sixty-four million, three hundred nineteen thousand, two hundred twenty".