345534280 has 192 divisors, whose sum is σ = 992839680. Its totient is φ = 107251200.

The previous prime is 345534253. The next prime is 345534281. The reversal of 345534280 is 82435543.

It is not an unprimeable number, because it can be changed into a prime (345534281) 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 47 ways as a sum of consecutive naturals, for example, 1808985 + ... + 1809175.

It is an arithmetic number, because the mean of its divisors is an integer number (5171040).

Almost surely, 2^345534280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345534280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (496419840).

345534280 is an abundant number, since it is smaller than the sum of its proper divisors (647305400).

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

345534280 is a wasteful number, since it uses less digits than its factorization.

345534280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 345534280 is about 18588.5523911896. The cubic root of 345534280 is about 701.7197713776.

The spelling of 345534280 in words is "three hundred forty-five million, five hundred thirty-four thousand, two hundred eighty".