345655530 has 96 divisors (see below), whose sum is σ = 991673280. Its totient is φ = 82832640.

The previous prime is 345655529. The next prime is 345655547. The reversal of 345655530 is 35556543.

345655530 is a `hidden beast` number, since 3 + 45 + 65 + 553 + 0 = 666.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 86149 + ... + 90071.

It is an arithmetic number, because the mean of its divisors is an integer number (10329930).

Almost surely, 2^345655530 is an apocalyptic number.

345655530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 345655530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495836640).

345655530 is an abundant number, since it is smaller than the sum of its proper divisors (646017750).

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

345655530 is a wasteful number, since it uses less digits than its factorization.

345655530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 4033 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 36.

The square root of 345655530 is about 18591.8135210097. The cubic root of 345655530 is about 701.8018409696.

The spelling of 345655530 in words is "three hundred forty-five million, six hundred fifty-five thousand, five hundred thirty".