828281532 has 48 divisors (see below), whose sum is σ = 2084356512. Its totient is φ = 254484480.

The previous prime is 828281513. The next prime is 828281533. The reversal of 828281532 is 235182828.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828281533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115228 + ... + 122204.

It is an arithmetic number, because the mean of its divisors is an integer number (43424094).

Almost surely, 2^828281532 is an apocalyptic number.

It is an amenable number.

828281532 is an abundant number, since it is smaller than the sum of its proper divisors (1256074980).

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

828281532 is a wasteful number, since it uses less digits than its factorization.

828281532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7758 (or 7756 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 828281532 is about 28779.8806807811. The cubic root of 828281532 is about 939.1306025179.

The spelling of 828281532 in words is "eight hundred twenty-eight million, two hundred eighty-one thousand, five hundred thirty-two".