355299980 has 84 divisors (see below), whose sum is σ = 876248688. Its totient is φ = 121010400.

The previous prime is 355299913. The next prime is 355300037. The reversal of 355299980 is 89992553.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2352905 + ... + 2353055.

It is an arithmetic number, because the mean of its divisors is an integer number (10431532).

Almost surely, 2^355299980 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 355299980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438124344).

355299980 is an abundant number, since it is smaller than the sum of its proper divisors (520948708).

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

355299980 is an frugal number, since it uses more digits than its factorization.

355299980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 50.

The square root of 355299980 is about 18849.4026430548. The cubic root of 355299980 is about 708.2692619632.

The spelling of 355299980 in words is "three hundred fifty-five million, two hundred ninety-nine thousand, nine hundred eighty".