340024403 has 2 divisors, whose sum is σ = 340024404. Its totient is φ = 340024402.

The previous prime is 340024351. The next prime is 340024417. The reversal of 340024403 is 304420043.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (304420043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340024403 - 2²⁸ = 71588947 is a prime.

It is not a weakly prime, because it can be changed into another prime (340024423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170012201 + 170012202.

It is an arithmetic number, because the mean of its divisors is an integer number (170012202).

Almost surely, 2^340024403 is an apocalyptic number.

340024403 is a deficient number, since it is larger than the sum of its proper divisors (1).

340024403 is an equidigital number, since it uses as much as digits as its factorization.

340024403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 340024403 is about 18439.7506219580. The cubic root of 340024403 is about 697.9699024797.

Adding to 340024403 its reverse (304420043), we get a palindrome (644444446).

The spelling of 340024403 in words is "three hundred forty million, twenty-four thousand, four hundred three".