352117830 has 64 divisors (see below), whose sum is σ = 863654400. Its totient is φ = 91855104.

The previous prime is 352117819. The next prime is 352117837. The reversal of 352117830 is 38711253.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352117837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 335146 + ... + 336194.

It is an arithmetic number, because the mean of its divisors is an integer number (13494600).

Almost surely, 2^352117830 is an apocalyptic number.

352117830 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 352117830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431827200).

352117830 is an abundant number, since it is smaller than the sum of its proper divisors (511536570).

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

352117830 is a wasteful number, since it uses less digits than its factorization.

352117830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 352117830 is about 18764.8029565994. The cubic root of 352117830 is about 706.1484425457.

The spelling of 352117830 in words is "three hundred fifty-two million, one hundred seventeen thousand, eight hundred thirty".