340003853 has 4 divisors (see below), whose sum is σ = 388575840. Its totient is φ = 291431868.

The previous prime is 340003849. The next prime is 340003889. The reversal of 340003853 is 358300043.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 340003853 - 2² = 340003849 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340003823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24285983 + ... + 24285996.

It is an arithmetic number, because the mean of its divisors is an integer number (97143960).

Almost surely, 2^340003853 is an apocalyptic number.

It is an amenable number.

340003853 is a deficient number, since it is larger than the sum of its proper divisors (48571987).

340003853 is an equidigital number, since it uses as much as digits as its factorization.

340003853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48571986.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 340003853 is about 18439.1933934215. The cubic root of 340003853 is about 697.9558411649.

Adding to 340003853 its reverse (358300043), we get a palindrome (698303896).

The spelling of 340003853 in words is "three hundred forty million, three thousand, eight hundred fifty-three".