345265128 has 48 divisors (see below), whose sum is σ = 1007026020. Its totient is φ = 106235136.

The previous prime is 345265127. The next prime is 345265147. The reversal of 345265128 is 821562543.

345265128 is a `hidden beast` number, since 3 + 4 + 526 + 5 + 128 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 313927524 + 31337604 = 17718^2 + 5598^2 .

It is a super-2 number, since 2×345265128² = 238416017225712768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 345265092 and 345265101.

It is not an unprimeable number, because it can be changed into a prime (345265127) 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 11 ways as a sum of consecutive naturals, for example, 183501 + ... + 185372.

Almost surely, 2^345265128 is an apocalyptic number.

It is an amenable number.

345265128 is an abundant number, since it is smaller than the sum of its proper divisors (661760892).

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

345265128 is a wasteful number, since it uses less digits than its factorization.

345265128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368898 (or 368891 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 345265128 is about 18581.3112562058. The cubic root of 345265128 is about 701.5375238152.

The spelling of 345265128 in words is "three hundred forty-five million, two hundred sixty-five thousand, one hundred twenty-eight".