354644225 has 24 divisors (see below), whose sum is σ = 501452280. Its totient is φ = 246481920.

The previous prime is 354644207. The next prime is 354644231. The reversal of 354644225 is 522446453.

It is a Cunningham number, because it is equal to 18832²+1.

It can be written as a sum of positive squares in 12 ways, for example, as 78552769 + 276091456 = 8863^2 + 16616^2 .

It is not a de Polignac number, because 354644225 - 2¹² = 354640129 is a prime.

It is an unprimeable number.

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, 26570 + ... + 37619.

It is an arithmetic number, because the mean of its divisors is an integer number (20893845).

Almost surely, 2^354644225 is an apocalyptic number.

It is an amenable number.

354644225 is a deficient number, since it is larger than the sum of its proper divisors (146808055).

354644225 is a wasteful number, since it uses less digits than its factorization.

354644225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64229 (or 64224 counting only the distinct ones).

The product of its digits is 115200, while the sum is 35.

The square root of 354644225 is about 18832.0000265506. Note that the first 4 decimals coincide. The cubic root of 354644225 is about 707.8332574923.

The spelling of 354644225 in words is "three hundred fifty-four million, six hundred forty-four thousand, two hundred twenty-five".