532821428 has 24 divisors (see below), whose sum is σ = 984910080. Its totient is φ = 251818560.

The previous prime is 532821413. The next prime is 532821433. The reversal of 532821428 is 824128235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44633 + ... + 55296.

It is an arithmetic number, because the mean of its divisors is an integer number (41037920).

Almost surely, 2^532821428 is an apocalyptic number.

It is an amenable number.

532821428 is a deficient number, since it is larger than the sum of its proper divisors (452088652).

532821428 is a wasteful number, since it uses less digits than its factorization.

532821428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100007 (or 100005 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 532821428 is about 23082.9250312867. The cubic root of 532821428 is about 810.7007237172.

The spelling of 532821428 in words is "five hundred thirty-two million, eight hundred twenty-one thousand, four hundred twenty-eight".