549034409 has 32 divisors (see below), whose sum is σ = 718295040. Its totient is φ = 407131200.

The previous prime is 549034399. The next prime is 549034427. The reversal of 549034409 is 904430945.

It is a de Polignac number, because none of the positive numbers 2^k-549034409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549034439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156812 + ... + 160274.

It is an arithmetic number, because the mean of its divisors is an integer number (22446720).

Almost surely, 2^549034409 is an apocalyptic number.

It is an amenable number.

549034409 is a deficient number, since it is larger than the sum of its proper divisors (169260631).

549034409 is a wasteful number, since it uses less digits than its factorization.

549034409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 549034409 is about 23431.4832863820. The cubic root of 549034409 is about 818.8415174666.

The spelling of 549034409 in words is "five hundred forty-nine million, thirty-four thousand, four hundred nine".