140251421040 has 40 divisors (see below), whose sum is σ = 434779405968. Its totient is φ = 37400378880.

The previous prime is 140251421027. The next prime is 140251421069. The reversal of 140251421040 is 40124152041.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×140251421040² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 140251421040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292190221 + ... + 292190700.

Almost surely, 2^140251421040 is an apocalyptic number.

140251421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140251421040 is an abundant number, since it is smaller than the sum of its proper divisors (294527984928).

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

140251421040 is a wasteful number, since it uses less digits than its factorization.

140251421040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584380937 (or 584380931 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 140251421040 its reverse (40124152041), we get a palindrome (180375573081).

The spelling of 140251421040 in words is "one hundred forty billion, two hundred fifty-one million, four hundred twenty-one thousand, forty".