345420073 has 8 divisors (see below), whose sum is σ = 368858880. Its totient is φ = 322749840.

The previous prime is 345420071. The next prime is 345420077. The reversal of 345420073 is 370024543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345420073 - 2¹ = 345420071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345420071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191215 + ... + 193012.

It is an arithmetic number, because the mean of its divisors is an integer number (46107360).

Almost surely, 2^345420073 is an apocalyptic number.

It is an amenable number.

345420073 is a deficient number, since it is larger than the sum of its proper divisors (23438807).

345420073 is a wasteful number, since it uses less digits than its factorization.

345420073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384287.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 345420073 is about 18585.4801659790. The cubic root of 345420073 is about 701.6424513684.

The spelling of 345420073 in words is "three hundred forty-five million, four hundred twenty thousand, seventy-three".