345425250 has 128 divisors (see below), whose sum is σ = 905748480. Its totient is φ = 87576000.

The previous prime is 345425237. The next prime is 345425257. The reversal of 345425250 is 52524543.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (345425257) 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 63 ways as a sum of consecutive naturals, for example, 1929661 + ... + 1929839.

It is an arithmetic number, because the mean of its divisors is an integer number (7076160).

Almost surely, 2^345425250 is an apocalyptic number.

345425250 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 345425250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452874240).

345425250 is an abundant number, since it is smaller than the sum of its proper divisors (560323230).

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

345425250 is a wasteful number, since it uses less digits than its factorization.

345425250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 345425250 is about 18585.6194408473. The cubic root of 345425250 is about 701.6459566509.

Adding to 345425250 its reverse (52524543), we get a palindrome (397949793).

The spelling of 345425250 in words is "three hundred forty-five million, four hundred twenty-five thousand, two hundred fifty".