355340689 has 8 divisors (see below), whose sum is σ = 387868320. Its totient is φ = 322850400.

The previous prime is 355340663. The next prime is 355340701. The reversal of 355340689 is 986043553.

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

It is a cyclic number.

It is not a de Polignac number, because 355340689 - 2⁷ = 355340561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355340389) 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, 12877 + ... + 29605.

It is an arithmetic number, because the mean of its divisors is an integer number (48483540).

Almost surely, 2^355340689 is an apocalyptic number.

It is an amenable number.

355340689 is a deficient number, since it is larger than the sum of its proper divisors (32527631).

355340689 is a wasteful number, since it uses less digits than its factorization.

355340689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18671.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 355340689 is about 18850.4824606693. The cubic root of 355340689 is about 708.2963112492.

The spelling of 355340689 in words is "three hundred fifty-five million, three hundred forty thousand, six hundred eighty-nine".