346541409 has 10 divisors (see below), whose sum is σ = 517673090. Its totient is φ = 231027552.

The previous prime is 346541381. The next prime is 346541473. The reversal of 346541409 is 904145643.

It can be written as a sum of positive squares in only one way, i.e., 266832225 + 79709184 = 16335^2 + 8928^2 .

It is not a de Polignac number, because 346541409 - 2¹⁵ = 346508641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (346541309) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2139064 + ... + 2139225.

It is an arithmetic number, because the mean of its divisors is an integer number (51767309).

Almost surely, 2^346541409 is an apocalyptic number.

It is an amenable number.

346541409 is a deficient number, since it is larger than the sum of its proper divisors (171131681).

346541409 is an equidigital number, since it uses as much as digits as its factorization.

346541409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278301 (or 4278292 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 346541409 is about 18615.6227131944. The cubic root of 346541409 is about 702.4008777628.

It can be divided in two parts, 34654 and 1409, that added together give a palindrome (36063).

The spelling of 346541409 in words is "three hundred forty-six million, five hundred forty-one thousand, four hundred nine".