352361421 has 28 divisors (see below), whose sum is σ = 541231740. Its totient is φ = 229158720.

The previous prime is 352361411. The next prime is 352361447. The reversal of 352361421 is 124163253.

352361421 is a `hidden beast` number, since 3 + 5 + 23 + 614 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13286025 + 339075396 = 3645^2 + 18414^2 .

It is not a de Polignac number, because 352361421 - 2⁵ = 352361389 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352361411) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 23995 + ... + 35783.

It is an arithmetic number, because the mean of its divisors is an integer number (19329705).

Almost surely, 2^352361421 is an apocalyptic number.

It is an amenable number.

352361421 is a deficient number, since it is larger than the sum of its proper divisors (188870319).

352361421 is an equidigital number, since it uses as much as digits as its factorization.

352361421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848 (or 11833 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 352361421 is about 18771.2924701524. The cubic root of 352361421 is about 706.3112400912.

The spelling of 352361421 in words is "three hundred fifty-two million, three hundred sixty-one thousand, four hundred twenty-one".