549187464 has 64 divisors (see below), whose sum is σ = 1577088000. Its totient is φ = 156112704.

The previous prime is 549187459. The next prime is 549187469. The reversal of 549187464 is 464781945.

It is an interprime number because it is at equal distance from previous prime (549187459) and next prime (549187469).

It is a super-2 number, since 2×549187464² = 603213741229502592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (549187469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25219 + ... + 41645.

It is an arithmetic number, because the mean of its divisors is an integer number (24642000).

Almost surely, 2^549187464 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 549187464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (788544000).

549187464 is an abundant number, since it is smaller than the sum of its proper divisors (1027900536).

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

549187464 is a wasteful number, since it uses less digits than its factorization.

549187464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16642 (or 16638 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 549187464 is about 23434.7490705576. The cubic root of 549187464 is about 818.9176002174.

The spelling of 549187464 in words is "five hundred forty-nine million, one hundred eighty-seven thousand, four hundred sixty-four".