549614772 has 108 divisors (see below), whose sum is σ = 1626373476. Its totient is φ = 156038400.

The previous prime is 549614749. The next prime is 549614773. The reversal of 549614772 is 277416945.

549614772 is a `hidden beast` number, since 549 + 61 + 47 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 292204836 + 257409936 = 17094^2 + 16044^2 .

It is a super-2 number, since 2×549614772² = 604152795201223968, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549614773) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 304272 + ... + 306072.

Almost surely, 2^549614772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549614772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813186738).

549614772 is an abundant number, since it is smaller than the sum of its proper divisors (1076758704).

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

549614772 is a wasteful number, since it uses less digits than its factorization.

549614772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1986 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 549614772 is about 23443.8642719156. The cubic root of 549614772 is about 819.1299377445.

The spelling of 549614772 in words is "five hundred forty-nine million, six hundred fourteen thousand, seven hundred seventy-two".