355404013 has 4 divisors (see below), whose sum is σ = 355929660. Its totient is φ = 354878368.

The previous prime is 355404011. The next prime is 355404017. The reversal of 355404013 is 310404553.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 324468169 + 30935844 = 18013^2 + 5562^2 .

It is a cyclic number.

It is not a de Polignac number, because 355404013 - 2¹ = 355404011 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 (355404011) 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, 261808 + ... + 263161.

It is an arithmetic number, because the mean of its divisors is an integer number (88982415).

Almost surely, 2^355404013 is an apocalyptic number.

It is an amenable number.

355404013 is a deficient number, since it is larger than the sum of its proper divisors (525647).

355404013 is an equidigital number, since it uses as much as digits as its factorization.

355404013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525646.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 355404013 is about 18852.1620245530. The cubic root of 355404013 is about 708.3383830720.

Adding to 355404013 its reverse (310404553), we get a palindrome (665808566).

The spelling of 355404013 in words is "three hundred fifty-five million, four hundred four thousand, thirteen".