549013389 has 16 divisors (see below), whose sum is σ = 738642240. Its totient is φ = 362706560.

The previous prime is 549013369. The next prime is 549013433. The reversal of 549013389 is 983310945.

It is a cyclic number.

It is not a de Polignac number, because 549013389 - 2⁸ = 549013133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 549013389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549013369) 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, 435442 + ... + 436700.

It is an arithmetic number, because the mean of its divisors is an integer number (46165140).

Almost surely, 2^549013389 is an apocalyptic number.

It is an amenable number.

549013389 is a deficient number, since it is larger than the sum of its proper divisors (189628851).

549013389 is a wasteful number, since it uses less digits than its factorization.

549013389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460.

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 549013389 is about 23431.0347402756. The cubic root of 549013389 is about 818.8310674425.

The spelling of 549013389 in words is "five hundred forty-nine million, thirteen thousand, three hundred eighty-nine".