816285528 has 24 divisors (see below), whose sum is σ = 2210773500. Its totient is φ = 272095152.

The previous prime is 816285499. The next prime is 816285529. The reversal of 816285528 is 825582618.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-4 number, since 4×816285528⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816285529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5668578 + ... + 5668721.

Almost surely, 2^816285528 is an apocalyptic number.

It is an amenable number.

816285528 is an abundant number, since it is smaller than the sum of its proper divisors (1394487972).

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

816285528 is a wasteful number, since it uses less digits than its factorization.

816285528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337311 (or 11337304 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 816285528 is about 28570.7110167038. The cubic root of 816285528 is about 934.5747264802.

The spelling of 816285528 in words is "eight hundred sixteen million, two hundred eighty-five thousand, five hundred twenty-eight".