345890250 has 320 divisors, whose sum is σ = 1087257600. Its totient is φ = 81648000.

The previous prime is 345890201. The next prime is 345890257. The reversal of 345890250 is 52098543.

It is not an unprimeable number, because it can be changed into a prime (345890257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11157735 + ... + 11157765.

It is an arithmetic number, because the mean of its divisors is an integer number (3397680).

Almost surely, 2^345890250 is an apocalyptic number.

345890250 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 345890250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (543628800).

345890250 is an abundant number, since it is smaller than the sum of its proper divisors (741367350).

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

345890250 is a wasteful number, since it uses less digits than its factorization.

345890250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 345890250 is about 18598.1249054844. The cubic root of 345890250 is about 701.9606596407.

The spelling of 345890250 in words is "three hundred forty-five million, eight hundred ninety thousand, two hundred fifty".