340020433 has 2 divisors, whose sum is σ = 340020434. Its totient is φ = 340020432.

The previous prime is 340020403. The next prime is 340020467. The reversal of 340020433 is 334020043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234916929 + 105103504 = 15327^2 + 10252^2 .

It is a cyclic number.

It is not a de Polignac number, because 340020433 - 2⁹ = 340019921 is a prime.

It is a super-2 number, since 2×340020433² = 231227789715014978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340020433.

It is not a weakly prime, because it can be changed into another prime (340020403) 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 as a sum of consecutive naturals, namely, 170010216 + 170010217.

It is an arithmetic number, because the mean of its divisors is an integer number (170010217).

Almost surely, 2^340020433 is an apocalyptic number.

It is an amenable number.

340020433 is a deficient number, since it is larger than the sum of its proper divisors (1).

340020433 is an equidigital number, since it uses as much as digits as its factorization.

340020433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 340020433 is about 18439.6429737671. The cubic root of 340020433 is about 697.9671860557.

Adding to 340020433 its reverse (334020043), we get a palindrome (674040476).

The spelling of 340020433 in words is "three hundred forty million, twenty thousand, four hundred thirty-three".