351823680 has 168 divisors, whose sum is σ = 1303352232. Its totient is φ = 86593536.

The previous prime is 351823651. The next prime is 351823691. The reversal of 351823680 is 86328153.

It can be written as a sum of positive squares in 4 ways, for example, as 18249984 + 333573696 = 4272^2 + 18264^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 32742 + ... + 42138.

It is an arithmetic number, because the mean of its divisors is an integer number (7758049).

Almost surely, 2^351823680 is an apocalyptic number.

351823680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351823680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651676116).

351823680 is an abundant number, since it is smaller than the sum of its proper divisors (951528552).

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

351823680 is a wasteful number, since it uses less digits than its factorization.

351823680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433 (or 9420 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 351823680 is about 18756.9635069219. The cubic root of 351823680 is about 705.9517551370.

The spelling of 351823680 in words is "three hundred fifty-one million, eight hundred twenty-three thousand, six hundred eighty".