549367920 has 200 divisors, whose sum is σ = 2020678704. Its totient is φ = 137852928.

The previous prime is 549367883. The next prime is 549367927. The reversal of 549367920 is 29763945.

It is a happy number.

549367920 is a `hidden beast` number, since 549 + 36 + 79 + 2 + 0 = 666.

It is a super-2 number, since 2×549367920² = 603610223050252800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549367927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 107667 + ... + 112653.

Almost surely, 2^549367920 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 549367920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1010339352).

549367920 is an abundant number, since it is smaller than the sum of its proper divisors (1471310784).

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

549367920 is a wasteful number, since it uses less digits than its factorization.

549367920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The square root of 549367920 is about 23438.5989342367. The cubic root of 549367920 is about 819.0072856897.

The spelling of 549367920 in words is "five hundred forty-nine million, three hundred sixty-seven thousand, nine hundred twenty".