355024421 has 4 divisors (see below), whose sum is σ = 355063212. Its totient is φ = 354985632.

The previous prime is 355024391. The next prime is 355024433. The reversal of 355024421 is 124420553.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 41344900 + 313679521 = 6430^2 + 17711^2 .

It is a cyclic number.

It is not a de Polignac number, because 355024421 - 2¹⁰ = 355023397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355024451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2801 + ... + 26793.

It is an arithmetic number, because the mean of its divisors is an integer number (88765803).

Almost surely, 2^355024421 is an apocalyptic number.

It is an amenable number.

355024421 is a deficient number, since it is larger than the sum of its proper divisors (38791).

355024421 is a wasteful number, since it uses less digits than its factorization.

355024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38790.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 355024421 is about 18842.0917363227. The cubic root of 355024421 is about 708.0861111441.

Adding to 355024421 its reverse (124420553), we get a palindrome (479444974).

The spelling of 355024421 in words is "three hundred fifty-five million, twenty-four thousand, four hundred twenty-one".