409167361 has 4 divisors (see below), whose sum is σ = 412921300. Its totient is φ = 405413424.

The previous prime is 409167323. The next prime is 409167377. The reversal of 409167361 is 163761904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 363131136 + 46036225 = 19056^2 + 6785^2 .

It is a cyclic number.

It is not a de Polignac number, because 409167361 - 2¹³ = 409159169 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 409167361.

It is not an unprimeable number, because it can be changed into a prime (409167961) 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, 1876806 + ... + 1877023.

It is an arithmetic number, because the mean of its divisors is an integer number (103230325).

Almost surely, 2^409167361 is an apocalyptic number.

It is an amenable number.

409167361 is a deficient number, since it is larger than the sum of its proper divisors (3753939).

409167361 is a wasteful number, since it uses less digits than its factorization.

409167361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753938.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 409167361 is about 20227.8857273814. The cubic root of 409167361 is about 742.3926456964.

The spelling of 409167361 in words is "four hundred nine million, one hundred sixty-seven thousand, three hundred sixty-one".