330140431 has 2 divisors, whose sum is σ = 330140432. Its totient is φ = 330140430.

The previous prime is 330140407. The next prime is 330140449. The reversal of 330140431 is 134041033.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 330140431 - 2¹⁹ = 329616143 is a prime.

It is a super-2 number, since 2×330140431² = 217985408361731522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 330140399 and 330140408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (330140471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165070215 + 165070216.

It is an arithmetic number, because the mean of its divisors is an integer number (165070216).

Almost surely, 2^330140431 is an apocalyptic number.

330140431 is a deficient number, since it is larger than the sum of its proper divisors (1).

330140431 is an equidigital number, since it uses as much as digits as its factorization.

330140431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 330140431 is about 18169.7669495236. The cubic root of 330140431 is about 691.1403331043.

Adding to 330140431 its reverse (134041033), we get a palindrome (464181464).

The spelling of 330140431 in words is "three hundred thirty million, one hundred forty thousand, four hundred thirty-one".