140304433 has 4 divisors (see below), whose sum is σ = 140364900. Its totient is φ = 140243968.

The previous prime is 140304431. The next prime is 140304443. The reversal of 140304433 is 334403041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334403041 = 7 ⋅47771863.

It can be written as a sum of positive squares in 2 ways, for example, as 123387664 + 16916769 = 11108^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 140304433 - 2¹ = 140304431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140304431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26608 + ... + 31441.

It is an arithmetic number, because the mean of its divisors is an integer number (35091225).

Almost surely, 2^140304433 is an apocalyptic number.

It is an amenable number.

140304433 is a deficient number, since it is larger than the sum of its proper divisors (60467).

140304433 is an equidigital number, since it uses as much as digits as its factorization.

140304433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60466.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 140304433 is about 11845.0172224442. The cubic root of 140304433 is about 519.6255106936.

Adding to 140304433 its reverse (334403041), we get a palindrome (474707474).

The spelling of 140304433 in words is "one hundred forty million, three hundred four thousand, four hundred thirty-three".