549738894 has 64 divisors (see below), whose sum is σ = 1230163200. Its totient is φ = 162759168.

The previous prime is 549738887. The next prime is 549738899. The reversal of 549738894 is 498837945.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549738899) 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, 811684 + ... + 812360.

It is an arithmetic number, because the mean of its divisors is an integer number (19221300).

Almost surely, 2^549738894 is an apocalyptic number.

549738894 is an abundant number, since it is smaller than the sum of its proper divisors (680424306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549738894 is a wasteful number, since it uses less digits than its factorization.

549738894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137.

The product of its digits is 8709120, while the sum is 57.

The square root of 549738894 is about 23446.5113396428. The cubic root of 549738894 is about 819.1915957145.

The spelling of 549738894 in words is "five hundred forty-nine million, seven hundred thirty-eight thousand, eight hundred ninety-four".