358309 has 8 divisors (see below), whose sum is σ = 433728. Its totient is φ = 288960.

The previous prime is 358301. The next prime is 358313. The reversal of 358309 is 903853.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 358309 - 2³ = 358301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (358301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1387 + ... + 1624.

It is an arithmetic number, because the mean of its divisors is an integer number (54216).

2³⁵⁸³⁰⁹ is an apocalyptic number.

It is an amenable number.

358309 is a deficient number, since it is larger than the sum of its proper divisors (75419).

358309 is a wasteful number, since it uses less digits than its factorization.

358309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 358309 is about 598.5891746432. The cubic root of 358309 is about 71.0263077805.

Subtracting from 358309 its sum of digits (28), we obtain a triangular number (358281 = T₈₄₆).

The spelling of 358309 in words is "three hundred fifty-eight thousand, three hundred nine".