538287616 has 40 divisors (see below), whose sum is σ = 1098456480. Its totient is φ = 263405568.

The previous prime is 538287611. The next prime is 538287641. The reversal of 538287616 is 616782835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538287611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12880 + ... + 35248.

It is an arithmetic number, because the mean of its divisors is an integer number (27461412).

Almost surely, 2^538287616 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 538287616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549228240).

538287616 is an abundant number, since it is smaller than the sum of its proper divisors (560168864).

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

538287616 is an equidigital number, since it uses as much as digits as its factorization.

538287616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22434 (or 22418 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 538287616 is about 23201.0261842014. The cubic root of 538287616 is about 813.4636095776.

The spelling of 538287616 in words is "five hundred thirty-eight million, two hundred eighty-seven thousand, six hundred sixteen".