345128352 has 24 divisors (see below), whose sum is σ = 905962176. Its totient is φ = 115042752.

The previous prime is 345128257. The next prime is 345128353. The reversal of 345128352 is 253821543.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×345128352² = 238227158708471808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (345128353) 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, 1797448 + ... + 1797639.

It is an arithmetic number, because the mean of its divisors is an integer number (37748424).

Almost surely, 2^345128352 is an apocalyptic number.

345128352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

345128352 is an abundant number, since it is smaller than the sum of its proper divisors (560833824).

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

345128352 is a wasteful number, since it uses less digits than its factorization.

345128352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595100 (or 3595092 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 345128352 is about 18577.6304194049. The cubic root of 345128352 is about 701.4448740784. Note that the first 3 decimals are identical.

Adding to 345128352 its reverse (253821543), we get a palindrome (598949895).

The spelling of 345128352 in words is "three hundred forty-five million, one hundred twenty-eight thousand, three hundred fifty-two".