352121819 has 8 divisors (see below), whose sum is σ = 404674560. Its totient is φ = 300131496.

The previous prime is 352121767. The next prime is 352121821. The reversal of 352121819 is 918121253.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 352121819 - 2¹⁶ = 352056283 is a prime.

It is a super-2 number, since 2×352121819² = 247979550831737522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (352121879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139259 + ... + 141764.

It is an arithmetic number, because the mean of its divisors is an integer number (50584320).

Almost surely, 2^352121819 is an apocalyptic number.

352121819 is a deficient number, since it is larger than the sum of its proper divisors (52552741).

352121819 is a wasteful number, since it uses less digits than its factorization.

352121819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281209.

The product of its digits is 4320, while the sum is 32.

The square root of 352121819 is about 18764.9092457171. The cubic root of 352121819 is about 706.1511090921.

The spelling of 352121819 in words is "three hundred fifty-two million, one hundred twenty-one thousand, eight hundred nineteen".