549869040 has 320 divisors, whose sum is σ = 2219857920. Its totient is φ = 122480640.

The previous prime is 549869009. The next prime is 549869051. The reversal of 549869040 is 40968945.

It is a happy number.

549869040 is a `hidden beast` number, since 549 + 8 + 69 + 0 + 40 = 666.

It is a super-2 number, since 2×549869040² = 604711922301043200, which contains 22 as substring.

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

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

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 619477 + ... + 620363.

It is an arithmetic number, because the mean of its divisors is an integer number (6937056).

Almost surely, 2^549869040 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 549869040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109928960).

549869040 is an abundant number, since it is smaller than the sum of its proper divisors (1669988880).

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

549869040 is a wasteful number, since it uses less digits than its factorization.

549869040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 549869040 is about 23449.2865563113. The cubic root of 549869040 is about 819.2562361576.

The spelling of 549869040 in words is "five hundred forty-nine million, eight hundred sixty-nine thousand, forty".