354038909405 has 8 divisors (see below), whose sum is σ = 424895638200. Its totient is φ = 283198496256.

The previous prime is 354038909351. The next prime is 354038909431. The reversal of 354038909405 is 504909830453.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 209326380484 + 144712528921 = 457522^2 + 380411^2 .

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 354038909405 - 2¹⁶ = 354038843869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4031120 + ... + 4118009.

It is an arithmetic number, because the mean of its divisors is an integer number (53111954775).

Almost surely, 2^354038909405 is an apocalyptic number.

It is an amenable number.

354038909405 is a deficient number, since it is larger than the sum of its proper divisors (70856728795).

354038909405 is an equidigital number, since it uses as much as digits as its factorization.

354038909405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157823.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 354038909405 in words is "three hundred fifty-four billion, thirty-eight million, nine hundred nine thousand, four hundred five".