140405421200 has 60 divisors (see below), whose sum is σ = 367989856368. Its totient is φ = 51056515200.

The previous prime is 140405421173. The next prime is 140405421251. The reversal of 140405421200 is 2124504041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15950762 + ... + 15959561.

Almost surely, 2^140405421200 is an apocalyptic number.

140405421200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140405421200 is an abundant number, since it is smaller than the sum of its proper divisors (227584435168).

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

140405421200 is a wasteful number, since it uses less digits than its factorization.

140405421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31910352 (or 31910341 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 140405421200 its reverse (2124504041), we get a palindrome (142529925241).

The spelling of 140405421200 in words is "one hundred forty billion, four hundred five million, four hundred twenty-one thousand, two hundred".