409170049 has 4 divisors (see below), whose sum is σ = 409213764. Its totient is φ = 409126336.

The previous prime is 409169951. The next prime is 409170061. The reversal of 409170049 is 940071904.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 224400400 + 184769649 = 14980^2 + 13593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409170049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 409169996 and 409170023.

It is not an unprimeable number, because it can be changed into a prime (409170449) 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, 1492 + ... + 28645.

It is an arithmetic number, because the mean of its divisors is an integer number (102303441).

Almost surely, 2^409170049 is an apocalyptic number.

It is an amenable number.

409170049 is a deficient number, since it is larger than the sum of its proper divisors (43715).

409170049 is a wasteful number, since it uses less digits than its factorization.

409170049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43714.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 409170049 is about 20227.9521702025. The cubic root of 409170049 is about 742.3942713939.

The spelling of 409170049 in words is "four hundred nine million, one hundred seventy thousand, forty-nine".