354224146 has 4 divisors (see below), whose sum is σ = 531336222. Its totient is φ = 177112072.

The previous prime is 354224111. The next prime is 354224147. The reversal of 354224146 is 641422453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 352876225 + 1347921 = 18785^2 + 1161^2 .

It is a super-3 number, since 3×354224146³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (354224147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88556035 + ... + 88556038.

Almost surely, 2^354224146 is an apocalyptic number.

354224146 is a deficient number, since it is larger than the sum of its proper divisors (177112076).

354224146 is a wasteful number, since it uses less digits than its factorization.

354224146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177112075.

The product of its digits is 23040, while the sum is 31.

The square root of 354224146 is about 18820.8433923669. The cubic root of 354224146 is about 707.5536689675.

Adding to 354224146 its reverse (641422453), we get a palindrome (995646599).

The spelling of 354224146 in words is "three hundred fifty-four million, two hundred twenty-four thousand, one hundred forty-six".