140442145245220 has 192 divisors, whose sum is σ = 366462195466752. Its totient is φ = 44023629312000.

The previous prime is 140442145245197. The next prime is 140442145245221. The reversal of 140442145245220 is 22542541244041.

It is a super-2 number, since 2×140442145245220² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140442145245221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123651510 + ... + 124782130.

It is an arithmetic number, because the mean of its divisors is an integer number (1908657268056).

Almost surely, 2^{140442145245220} is an apocalyptic number.

140442145245220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140442145245220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183231097733376).

140442145245220 is an abundant number, since it is smaller than the sum of its proper divisors (226020050221532).

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

140442145245220 is a wasteful number, since it uses less digits than its factorization.

140442145245220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131302 (or 1131300 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 40.

Adding to 140442145245220 its reverse (22542541244041), we get a palindrome (162984686489261).

The spelling of 140442145245220 in words is "one hundred forty trillion, four hundred forty-two billion, one hundred forty-five million, two hundred forty-five thousand, two hundred twenty".