345378006 has 80 divisors (see below), whose sum is σ = 808241280. Its totient is φ = 110108160.

The previous prime is 345377999. The next prime is 345378013. The reversal of 345378006 is 600873543.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (345377999) and next prime (345378013).

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 486780 + ... + 487488.

It is an arithmetic number, because the mean of its divisors is an integer number (10103016).

Almost surely, 2^345378006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 345378006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404120640).

345378006 is an abundant number, since it is smaller than the sum of its proper divisors (462863274).

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

345378006 is a wasteful number, since it uses less digits than its factorization.

345378006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 345378006 is about 18584.3484147279. The cubic root of 345378006 is about 701.6139670257.

The spelling of 345378006 in words is "three hundred forty-five million, three hundred seventy-eight thousand, six".