345024019 has 4 divisors (see below), whose sum is σ = 345562920. Its totient is φ = 344485120.

The previous prime is 345024013. The next prime is 345024037. The reversal of 345024019 is 910420543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345024019 is a prime.

It is a super-2 number, since 2×345024019² = 238083147373824722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345024013) 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 in 3 ways as a sum of consecutive naturals, for example, 268489 + ... + 269770.

It is an arithmetic number, because the mean of its divisors is an integer number (86390730).

Almost surely, 2^345024019 is an apocalyptic number.

345024019 is a deficient number, since it is larger than the sum of its proper divisors (538901).

345024019 is an equidigital number, since it uses as much as digits as its factorization.

345024019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538900.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 345024019 is about 18574.8221794988. The cubic root of 345024019 is about 701.3741842192.

The spelling of 345024019 in words is "three hundred forty-five million, twenty-four thousand, nineteen".