345256830 has 96 divisors (see below), whose sum is σ = 951035904. Its totient is φ = 90079776.

The previous prime is 345256823. The next prime is 345256831. The reversal of 345256830 is 38652543.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345256831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112699 + ... + 115721.

It is an arithmetic number, because the mean of its divisors is an integer number (9906624).

Almost surely, 2^345256830 is an apocalyptic number.

345256830 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 345256830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (475517952).

345256830 is an abundant number, since it is smaller than the sum of its proper divisors (605779074).

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

345256830 is a wasteful number, since it uses less digits than its factorization.

345256830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092 (or 3080 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 345256830 is about 18581.0879659938. The cubic root of 345256830 is about 701.5319035884.

The spelling of 345256830 in words is "three hundred forty-five million, two hundred fifty-six thousand, eight hundred thirty".