409741549 has 4 divisors (see below), whose sum is σ = 468276064. Its totient is φ = 351207036.

The previous prime is 409741537. The next prime is 409741571. The reversal of 409741549 is 945147904.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409741549 - 2⁷ = 409741421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409741529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29267247 + ... + 29267260.

It is an arithmetic number, because the mean of its divisors is an integer number (117069016).

Almost surely, 2^409741549 is an apocalyptic number.

It is an amenable number.

409741549 is a deficient number, since it is larger than the sum of its proper divisors (58534515).

409741549 is an equidigital number, since it uses as much as digits as its factorization.

409741549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58534514.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 409741549 is about 20242.0737326984. The cubic root of 409741549 is about 742.7397519964.

The spelling of 409741549 in words is "four hundred nine million, seven hundred forty-one thousand, five hundred forty-nine".