355855220 has 48 divisors (see below), whose sum is σ = 904296960. Its totient is φ = 114829824.

The previous prime is 355855211. The next prime is 355855223. The reversal of 355855220 is 22558553.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355855223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72380 + ... + 77139.

It is an arithmetic number, because the mean of its divisors is an integer number (18839520).

Almost surely, 2^355855220 is an apocalyptic number.

It is an amenable number.

355855220 is an abundant number, since it is smaller than the sum of its proper divisors (548441740).

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

355855220 is a wasteful number, since it uses less digits than its factorization.

355855220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149552 (or 149550 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 355855220 is about 18864.1252116286. The cubic root of 355855220 is about 708.6380158532.

The spelling of 355855220 in words is "three hundred fifty-five million, eight hundred fifty-five thousand, two hundred twenty".