545242720 has 48 divisors (see below), whose sum is σ = 1405243728. Its totient is φ = 198269440.

The previous prime is 545242699. The next prime is 545242721. The reversal of 545242720 is 27242545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545242721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153139 + ... + 156658.

It is an arithmetic number, because the mean of its divisors is an integer number (29275911).

Almost surely, 2^545242720 is an apocalyptic number.

It is an amenable number.

545242720 is an abundant number, since it is smaller than the sum of its proper divisors (860001008).

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

545242720 is a wasteful number, since it uses less digits than its factorization.

545242720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309823 (or 309815 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 545242720 is about 23350.4329724312. The cubic root of 545242720 is about 816.9521597063.

The spelling of 545242720 in words is "five hundred forty-five million, two hundred forty-two thousand, seven hundred twenty".