140424433 has 4 divisors (see below), whose sum is σ = 140849008. Its totient is φ = 139999860.

The previous prime is 140424419. The next prime is 140424491. The reversal of 140424433 is 334424041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334424041 = 7 ⋅47774863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140424433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140424398 and 140424407.

It is not an unprimeable number, because it can be changed into a prime (140424733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211791 + ... + 212452.

It is an arithmetic number, because the mean of its divisors is an integer number (35212252).

Almost surely, 2^140424433 is an apocalyptic number.

It is an amenable number.

140424433 is a deficient number, since it is larger than the sum of its proper divisors (424575).

140424433 is an equidigital number, since it uses as much as digits as its factorization.

140424433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424574.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 140424433 is about 11850.0815609008. The cubic root of 140424433 is about 519.7736107721.

Adding to 140424433 its reverse (334424041), we get a palindrome (474848474).

The spelling of 140424433 in words is "one hundred forty million, four hundred twenty-four thousand, four hundred thirty-three".