549045393 has 16 divisors (see below), whose sum is σ = 796184256. Its totient is φ = 334526400.

The previous prime is 549045383. The next prime is 549045407. The reversal of 549045393 is 393540945.

It is a happy number.

It is not a de Polignac number, because 549045393 - 2⁴ = 549045377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (549045373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65755 + ... + 73632.

It is an arithmetic number, because the mean of its divisors is an integer number (49761516).

Almost surely, 2^549045393 is an apocalyptic number.

It is an amenable number.

549045393 is a deficient number, since it is larger than the sum of its proper divisors (247138863).

549045393 is a wasteful number, since it uses less digits than its factorization.

549045393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139504.

The product of its (nonzero) digits is 291600, while the sum is 42.

The square root of 549045393 is about 23431.7176707129. The cubic root of 549045393 is about 818.8469780201.

The spelling of 549045393 in words is "five hundred forty-nine million, forty-five thousand, three hundred ninety-three".