345419999 has 4 divisors (see below), whose sum is σ = 345462936. Its totient is φ = 345377064.

The previous prime is 345419993. The next prime is 345420017. The reversal of 345419999 is 999914543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 999914543 = 241 ⋅4149023.

It is a cyclic number.

It is not a de Polignac number, because 345419999 - 2⁸ = 345419743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345419999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345419993) 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, 5384 + ... + 26829.

It is an arithmetic number, because the mean of its divisors is an integer number (86365734).

Almost surely, 2^345419999 is an apocalyptic number.

345419999 is a deficient number, since it is larger than the sum of its proper divisors (42937).

345419999 is a wasteful number, since it uses less digits than its factorization.

345419999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42936.

The product of its digits is 1574640, while the sum is 53.

The square root of 345419999 is about 18585.4781751775. The cubic root of 345419999 is about 701.6424012637.

The spelling of 345419999 in words is "three hundred forty-five million, four hundred nineteen thousand, nine hundred ninety-nine".