538198720 has 28 divisors (see below), whose sum is σ = 1281586464. Its totient is φ = 215279360.

The previous prime is 538198711. The next prime is 538198723. The reversal of 538198720 is 27891835.

It is not an unprimeable number, because it can be changed into a prime (538198723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840616 + ... + 841255.

Almost surely, 2^538198720 is an apocalyptic number.

It is an amenable number.

538198720 is an abundant number, since it is smaller than the sum of its proper divisors (743387744).

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

538198720 is a wasteful number, since it uses less digits than its factorization.

538198720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681888 (or 1681878 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 538198720 is about 23199.1103277690. The cubic root of 538198720 is about 813.4188270487.

The spelling of 538198720 in words is "five hundred thirty-eight million, one hundred ninety-eight thousand, seven hundred twenty".