355520242 has 16 divisors (see below), whose sum is σ = 664869312. Its totient is φ = 138514320.

The previous prime is 355520239. The next prime is 355520257. The reversal of 355520242 is 242025553.

It is a self number, because there is not a number n which added to its sum of digits gives 355520242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1154133 + ... + 1154440.

It is an arithmetic number, because the mean of its divisors is an integer number (41554332).

Almost surely, 2^355520242 is an apocalyptic number.

355520242 is a deficient number, since it is larger than the sum of its proper divisors (309349070).

355520242 is a wasteful number, since it uses less digits than its factorization.

355520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308593.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 355520242 is about 18855.2444163421. The cubic root of 355520242 is about 708.4155914375.

Adding to 355520242 its reverse (242025553), we get a palindrome (597545795).

The spelling of 355520242 in words is "three hundred fifty-five million, five hundred twenty thousand, two hundred forty-two".