353140405 has 8 divisors (see below), whose sum is σ = 448696152. Its totient is φ = 265893888.

The previous prime is 353140393. The next prime is 353140409. The reversal of 353140405 is 504041353.

It can be written as a sum of positive squares in 4 ways, for example, as 4235364 + 348905041 = 2058^2 + 18679^2 .

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 353140405 - 2⁹ = 353139893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 353140405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353140409) 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, 2077212 + ... + 2077381.

It is an arithmetic number, because the mean of its divisors is an integer number (56087019).

Almost surely, 2^353140405 is an apocalyptic number.

It is an amenable number.

353140405 is a deficient number, since it is larger than the sum of its proper divisors (95555747).

353140405 is a wasteful number, since it uses less digits than its factorization.

353140405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4154615.

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

The square root of 353140405 is about 18792.0303586387. The cubic root of 353140405 is about 706.8313501862.

Adding to 353140405 its reverse (504041353), we get a palindrome (857181758).

The spelling of 353140405 in words is "three hundred fifty-three million, one hundred forty thousand, four hundred five".