549303540 has 48 divisors (see below), whose sum is σ = 1540392000. Its totient is φ = 146257920.

The previous prime is 549303533. The next prime is 549303551. The reversal of 549303540 is 45303945.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34836 + ... + 48084.

It is an arithmetic number, because the mean of its divisors is an integer number (32091500).

Almost surely, 2^549303540 is an apocalyptic number.

It is an amenable number.

549303540 is an abundant number, since it is smaller than the sum of its proper divisors (991088460).

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

549303540 is a wasteful number, since it uses less digits than its factorization.

549303540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13952 (or 13950 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 549303540 is about 23437.2255183927. The cubic root of 549303540 is about 818.9752914973.

The spelling of 549303540 in words is "five hundred forty-nine million, three hundred three thousand, five hundred forty".