345445120 has 36 divisors (see below), whose sum is σ = 827452080. Its totient is φ = 138177536.

The previous prime is 345445109. The next prime is 345445127. The reversal of 345445120 is 21544543.

It is not an unprimeable number, because it can be changed into a prime (345445127) 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, 133660 + ... + 136219.

It is an arithmetic number, because the mean of its divisors is an integer number (22984780).

Almost surely, 2^345445120 is an apocalyptic number.

It is an amenable number.

345445120 is an abundant number, since it is smaller than the sum of its proper divisors (482006960).

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

345445120 is an equidigital number, since it uses as much as digits as its factorization.

345445120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269900 (or 269886 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 345445120 is about 18586.1539862339. The cubic root of 345445120 is about 701.6594100564.

Adding to 345445120 its reverse (21544543), we get a palindrome (366989663).

The spelling of 345445120 in words is "three hundred forty-five million, four hundred forty-five thousand, one hundred twenty".