345406434 has 32 divisors (see below), whose sum is σ = 731566080. Its totient is φ = 108416592.

The previous prime is 345406403. The next prime is 345406447. The reversal of 345406434 is 434604543.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345406395 and 345406404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9967 + ... + 28109.

It is an arithmetic number, because the mean of its divisors is an integer number (22861440).

Almost surely, 2^345406434 is an apocalyptic number.

345406434 is an abundant number, since it is smaller than the sum of its proper divisors (386159646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345406434 is a wasteful number, since it uses less digits than its factorization.

345406434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18334.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 345406434 is about 18585.1132361361. The cubic root of 345406434 is about 701.6332164030.

The spelling of 345406434 in words is "three hundred forty-five million, four hundred six thousand, four hundred thirty-four".