538517616 has 320 divisors, whose sum is σ = 1829216256. Its totient is φ = 132710400.

The previous prime is 538517597. The next prime is 538517663. The reversal of 538517616 is 616715835.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (151200) is a multiple of the sum of its prime factors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5551680 + ... + 5551776.

Almost surely, 2^538517616 is an apocalyptic number.

538517616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538517616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (914608128).

538517616 is an abundant number, since it is smaller than the sum of its proper divisors (1290698640).

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

538517616 is a wasteful number, since it uses less digits than its factorization.

538517616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its digits is 151200, while the sum is 42.

The square root of 538517616 is about 23205.9823321488. The cubic root of 538517616 is about 813.5794522259.

The spelling of 538517616 in words is "five hundred thirty-eight million, five hundred seventeen thousand, six hundred sixteen".