355226620 has 48 divisors (see below), whose sum is σ = 859299840. Its totient is φ = 120826944.

The previous prime is 355226591. The next prime is 355226621. The reversal of 355226620 is 26622553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355226621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7791 + ... + 27769.

It is an arithmetic number, because the mean of its divisors is an integer number (17902080).

Almost surely, 2^355226620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 355226620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429649920).

355226620 is an abundant number, since it is smaller than the sum of its proper divisors (504073220).

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

355226620 is a wasteful number, since it uses less digits than its factorization.

355226620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20122 (or 20120 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 355226620 is about 18847.4565923363. The cubic root of 355226620 is about 708.2205123503.

The spelling of 355226620 in words is "three hundred fifty-five million, two hundred twenty-six thousand, six hundred twenty".