140421474550 has 48 divisors (see below), whose sum is σ = 299558407392. Its totient is φ = 47973139200.

The previous prime is 140421474497. The next prime is 140421474559. The reversal of 140421474550 is 55474124041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140421474559) 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, 615537 + ... + 812236.

It is an arithmetic number, because the mean of its divisors is an integer number (6240800154).

Almost surely, 2^140421474550 is an apocalyptic number.

140421474550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140421474550 is an abundant number, since it is smaller than the sum of its proper divisors (159136932842).

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

140421474550 is a wasteful number, since it uses less digits than its factorization.

140421474550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428073 (or 1428068 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 37.

Adding to 140421474550 its reverse (55474124041), we get a palindrome (195895598591).

The spelling of 140421474550 in words is "one hundred forty billion, four hundred twenty-one million, four hundred seventy-four thousand, five hundred fifty".