140303434 has 8 divisors (see below), whose sum is σ = 210538980. Its totient is φ = 70123776.

The previous prime is 140303369. The next prime is 140303437. The reversal of 140303434 is 434303041.

It can be written as a sum of positive squares in 2 ways, for example, as 139169209 + 1134225 = 11797^2 + 1065^2 .

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

It is not an unprimeable number, because it can be changed into a prime (140303437) 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 3 ways as a sum of consecutive naturals, for example, 6999 + ... + 18154.

Almost surely, 2^140303434 is an apocalyptic number.

140303434 is a deficient number, since it is larger than the sum of its proper divisors (70235546).

140303434 is a wasteful number, since it uses less digits than its factorization.

140303434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27944.

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

The square root of 140303434 is about 11844.9750527386. The cubic root of 140303434 is about 519.6242774061.

Adding to 140303434 its reverse (434303041), we get a palindrome (574606475).

The spelling of 140303434 in words is "one hundred forty million, three hundred three thousand, four hundred thirty-four".