352421091 has 24 divisors (see below), whose sum is σ = 573889680. Its totient is φ = 213586560.

The previous prime is 352421059. The next prime is 352421093. The reversal of 352421091 is 190124253.

It is not a de Polignac number, because 352421091 - 2⁵ = 352421059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (352421093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50670 + ... + 57203.

It is an arithmetic number, because the mean of its divisors is an integer number (23912070).

Almost surely, 2^352421091 is an apocalyptic number.

352421091 is a deficient number, since it is larger than the sum of its proper divisors (221468589).

352421091 is a wasteful number, since it uses less digits than its factorization.

352421091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107904 (or 107887 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 352421091 is about 18772.8817979553. The cubic root of 352421091 is about 706.3511075024.

The spelling of 352421091 in words is "three hundred fifty-two million, four hundred twenty-one thousand, ninety-one".