140324421 has 8 divisors (see below), whose sum is σ = 187225920. Its totient is φ = 93486272.

The previous prime is 140324411. The next prime is 140324489. The reversal of 140324421 is 124423041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140324421 - 2⁵ = 140324389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140324411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10401 + ... + 19718.

It is an arithmetic number, because the mean of its divisors is an integer number (23403240).

Almost surely, 2^140324421 is an apocalyptic number.

It is an amenable number.

140324421 is a deficient number, since it is larger than the sum of its proper divisors (46901499).

140324421 is a wasteful number, since it uses less digits than its factorization.

140324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31675.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140324421 is about 11845.8609227021. The cubic root of 140324421 is about 519.6501850898.

Adding to 140324421 its reverse (124423041), we get a palindrome (264747462).

The spelling of 140324421 in words is "one hundred forty million, three hundred twenty-four thousand, four hundred twenty-one".