345322530 has 192 divisors, whose sum is σ = 1144316160. Its totient is φ = 70336512.

The previous prime is 345322519. The next prime is 345322553. The reversal of 345322530 is 35223543.

It is a junction number, because it is equal to n+sod(n) for n = 345322494 and 345322503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 202642 + ... + 204338.

It is an arithmetic number, because the mean of its divisors is an integer number (5959980).

Almost surely, 2^345322530 is an apocalyptic number.

345322530 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 345322530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (572158080).

345322530 is an abundant number, since it is smaller than the sum of its proper divisors (798993630).

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

345322530 is a wasteful number, since it uses less digits than its factorization.

345322530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 345322530 is about 18582.8558085134. The cubic root of 345322530 is about 701.5763996648.

The spelling of 345322530 in words is "three hundred forty-five million, three hundred twenty-two thousand, five hundred thirty".