355665406 has 8 divisors (see below), whose sum is σ = 546510384. Its totient is φ = 173495280.

The previous prime is 355665397. The next prime is 355665407. The reversal of 355665406 is 604566553.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355665407) 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, 2168610 + ... + 2168773.

It is an arithmetic number, because the mean of its divisors is an integer number (68313798).

Almost surely, 2^355665406 is an apocalyptic number.

355665406 is a deficient number, since it is larger than the sum of its proper divisors (190844978).

355665406 is a wasteful number, since it uses less digits than its factorization.

355665406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337426.

The product of its (nonzero) digits is 324000, while the sum is 40.

The square root of 355665406 is about 18859.0934564735. The cubic root of 355665406 is about 708.5119970570.

The spelling of 355665406 in words is "three hundred fifty-five million, six hundred sixty-five thousand, four hundred six".