549899262 has 72 divisors (see below), whose sum is σ = 1331399160. Its totient is φ = 163864800.

The previous prime is 549899261. The next prime is 549899269. The reversal of 549899262 is 262998945.

It is a happy number.

549899262 is a `hidden beast` number, since 5 + 498 + 9 + 92 + 62 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 549899199 and 549899208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549899261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 130789 + ... + 134927.

It is an arithmetic number, because the mean of its divisors is an integer number (18491655).

Almost surely, 2^549899262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549899262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (665699580).

549899262 is an abundant number, since it is smaller than the sum of its proper divisors (781499898).

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

549899262 is a wasteful number, since it uses less digits than its factorization.

549899262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230 (or 4216 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 549899262 is about 23449.9309593866. The cubic root of 549899262 is about 819.2712452517.

It can be divided in two parts, 549 and 899262, that added together give a triangular number (899811 = T₁₃₄₁).

The spelling of 549899262 in words is "five hundred forty-nine million, eight hundred ninety-nine thousand, two hundred sixty-two".