351999606 has 64 divisors (see below), whose sum is σ = 846360576. Its totient is φ = 95472000.

The previous prime is 351999601. The next prime is 351999607. The reversal of 351999606 is 606999153.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351999601) 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 31 ways as a sum of consecutive naturals, for example, 66456 + ... + 71556.

It is an arithmetic number, because the mean of its divisors is an integer number (13224384).

Almost surely, 2^351999606 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351999606, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423180288).

351999606 is an abundant number, since it is smaller than the sum of its proper divisors (494360970).

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

351999606 is a wasteful number, since it uses less digits than its factorization.

351999606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5197.

The product of its (nonzero) digits is 393660, while the sum is 48.

The square root of 351999606 is about 18761.6525391555. The cubic root of 351999606 is about 706.0694036262.

The spelling of 351999606 in words is "three hundred fifty-one million, nine hundred ninety-nine thousand, six hundred six".