343445000 has 80 divisors (see below), whose sum is σ = 811849500. Its totient is φ = 136160000.

The previous prime is 343444961. The next prime is 343445017. The reversal of 343445000 is 544343.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 107453956 + 235991044 = 10366^2 + 15362^2 .

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 19 ways as a sum of consecutive naturals, for example, 744770 + ... + 745230.

Almost surely, 2^343445000 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 343445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405924750).

343445000 is an abundant number, since it is smaller than the sum of its proper divisors (468404500).

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

343445000 is a wasteful number, since it uses less digits than its factorization.

343445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 617 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 343445000 is about 18532.2691540998. The cubic root of 343445000 is about 700.3025902683.

Adding to 343445000 its reverse (544343), we get a palindrome (343989343).

The spelling of 343445000 in words is "three hundred forty-three million, four hundred forty-five thousand".