345531342 has 32 divisors (see below), whose sum is σ = 746651808. Its totient is φ = 105970176.

The previous prime is 345531281. The next prime is 345531349. The reversal of 345531342 is 243135543.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345531349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17338 + ... + 31490.

It is an arithmetic number, because the mean of its divisors is an integer number (23332869).

Almost surely, 2^345531342 is an apocalyptic number.

345531342 is an abundant number, since it is smaller than the sum of its proper divisors (401120466).

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

345531342 is a wasteful number, since it uses less digits than its factorization.

345531342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484.

The product of its digits is 21600, while the sum is 30.

The square root of 345531342 is about 18588.4733638887. The cubic root of 345531342 is about 701.7177825170.

Adding to 345531342 its reverse (243135543), we get a palindrome (588666885).

The spelling of 345531342 in words is "three hundred forty-five million, five hundred thirty-one thousand, three hundred forty-two".