355438089 has 12 divisors (see below), whose sum is σ = 518495172. Its totient is φ = 234612000.

The previous prime is 355438081. The next prime is 355438117. The reversal of 355438089 is 980834553.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 290361600 + 65076489 = 17040^2 + 8067^2 .

It is not a de Polignac number, because 355438089 - 2³ = 355438081 is a prime.

It is a super-2 number, since 2×355438089² = 252672470223943842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (355438081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194602 + ... + 196419.

It is an arithmetic number, because the mean of its divisors is an integer number (43207931).

Almost surely, 2^355438089 is an apocalyptic number.

It is an amenable number.

355438089 is a deficient number, since it is larger than the sum of its proper divisors (163057083).

355438089 is a wasteful number, since it uses less digits than its factorization.

355438089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391128 (or 391125 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 355438089 is about 18853.0657719109. The cubic root of 355438089 is about 708.3610207524.

The spelling of 355438089 in words is "three hundred fifty-five million, four hundred thirty-eight thousand, eighty-nine".