355828009 has 4 divisors (see below), whose sum is σ = 371298816. Its totient is φ = 340357204.

The previous prime is 355828007. The next prime is 355828021. The reversal of 355828009 is 900828553.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900828553 = 24821 ⋅36293.

It is a cyclic number.

It is not a de Polignac number, because 355828009 - 2¹ = 355828007 is a prime.

It is a super-2 number, since 2×355828009² = 253227143977808162, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355828007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7735369 + ... + 7735414.

It is an arithmetic number, because the mean of its divisors is an integer number (92824704).

Almost surely, 2^355828009 is an apocalyptic number.

It is an amenable number.

355828009 is a deficient number, since it is larger than the sum of its proper divisors (15470807).

355828009 is a wasteful number, since it uses less digits than its factorization.

355828009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15470806.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 355828009 is about 18863.4039611095. The cubic root of 355828009 is about 708.6199530386.

The spelling of 355828009 in words is "three hundred fifty-five million, eight hundred twenty-eight thousand, nine".