355224406 has 4 divisors (see below), whose sum is σ = 532836612. Its totient is φ = 177612202.

The previous prime is 355224403. The next prime is 355224407. The reversal of 355224406 is 604422553.

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

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355224403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88806100 + ... + 88806103.

It is an arithmetic number, because the mean of its divisors is an integer number (133209153).

Almost surely, 2^355224406 is an apocalyptic number.

355224406 is a deficient number, since it is larger than the sum of its proper divisors (177612206).

355224406 is a wasteful number, since it uses less digits than its factorization.

355224406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177612205.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 355224406 is about 18847.3978575293. The cubic root of 355224406 is about 708.2190409859.

Adding to 355224406 its reverse (604422553), we get a palindrome (959646959).

The spelling of 355224406 in words is "three hundred fifty-five million, two hundred twenty-four thousand, four hundred six".