340465403 has 2 divisors, whose sum is σ = 340465404. Its totient is φ = 340465402.

The previous prime is 340465399. The next prime is 340465421. The reversal of 340465403 is 304564043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340465403 - 2² = 340465399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (340465493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170232701 + 170232702.

It is an arithmetic number, because the mean of its divisors is an integer number (170232702).

Almost surely, 2^340465403 is an apocalyptic number.

340465403 is a deficient number, since it is larger than the sum of its proper divisors (1).

340465403 is an equidigital number, since it uses as much as digits as its factorization.

340465403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 340465403 is about 18451.7046096018. The cubic root of 340465403 is about 698.2715198042.

The spelling of 340465403 in words is "three hundred forty million, four hundred sixty-five thousand, four hundred three".