140005424 has 40 divisors (see below), whose sum is σ = 301564032. Its totient is φ = 62530560.

The previous prime is 140005409. The next prime is 140005451. The reversal of 140005424 is 424500041.

It is a junction number, because it is equal to n+sod(n) for n = 140005396 and 140005405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4409 + ... + 17304.

Almost surely, 2^140005424 is an apocalyptic number.

It is an amenable number.

140005424 is an abundant number, since it is smaller than the sum of its proper divisors (161558608).

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

140005424 is a wasteful number, since it uses less digits than its factorization.

140005424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21765 (or 21759 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 140005424 is about 11832.3887698131. The cubic root of 140005424 is about 519.2561158338.

Adding to 140005424 its reverse (424500041), we get a palindrome (564505465).

The spelling of 140005424 in words is "one hundred forty million, five thousand, four hundred twenty-four".