3401605409 has 4 divisors (see below), whose sum is σ = 3436673604. Its totient is φ = 3366537216.

The previous prime is 3401605367. The next prime is 3401605421. The reversal of 3401605409 is 9045061043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9045061043 = 787 ⋅11493089.

It can be written as a sum of positive squares in 2 ways, for example, as 749664400 + 2651941009 = 27380^2 + 51497^2 .

It is a cyclic number.

It is not a de Polignac number, because 3401605409 - 2²⁰ = 3400556833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3401605499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17533952 + ... + 17534145.

It is an arithmetic number, because the mean of its divisors is an integer number (859168401).

Almost surely, 2^3401605409 is an apocalyptic number.

It is an amenable number.

3401605409 is a deficient number, since it is larger than the sum of its proper divisors (35068195).

3401605409 is an equidigital number, since it uses as much as digits as its factorization.

3401605409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35068194.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 3401605409 is about 58323.2835924042. The cubic root of 3401605409 is about 1503.9312300269.

The spelling of 3401605409 in words is "three billion, four hundred one million, six hundred five thousand, four hundred nine".