140223421440 has 264 divisors, whose sum is σ = 494115176880. Its totient is φ = 36758421504.

The previous prime is 140223421439. The next prime is 140223421627. The reversal of 140223421440 is 44124322041.

140223421440 is a `hidden beast` number, since 1 + 402 + 2 + 3 + 4 + 214 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2692932 + ... + 2744508.

Almost surely, 2^140223421440 is an apocalyptic number.

140223421440 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 140223421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247057588440).

140223421440 is an abundant number, since it is smaller than the sum of its proper divisors (353891755440).

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

140223421440 is a wasteful number, since it uses less digits than its factorization.

140223421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51667 (or 51646 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 140223421440 its reverse (44124322041), we get a palindrome (184347743481).

The spelling of 140223421440 in words is "one hundred forty billion, two hundred twenty-three million, four hundred twenty-one thousand, four hundred forty".