355231242 has 24 divisors (see below), whose sum is σ = 779413440. Its totient is φ = 116911080.

The previous prime is 355231199. The next prime is 355231249. The reversal of 355231242 is 242132553.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (355231249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123484 + ... + 126327.

It is an arithmetic number, because the mean of its divisors is an integer number (32475560).

Almost surely, 2^355231242 is an apocalyptic number.

355231242 is an abundant number, since it is smaller than the sum of its proper divisors (424182198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

355231242 is a wasteful number, since it uses less digits than its factorization.

355231242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249898 (or 249895 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 355231242 is about 18847.5792079513. The cubic root of 355231242 is about 708.2235839867.

Adding to 355231242 its reverse (242132553), we get a palindrome (597363795).

The spelling of 355231242 in words is "three hundred fifty-five million, two hundred thirty-one thousand, two hundred forty-two".