544320828 has 18 divisors (see below), whose sum is σ = 1375922184. Its totient is φ = 181440264.

The previous prime is 544320809. The next prime is 544320839. The reversal of 544320828 is 828023445.

544320828 is a `hidden beast` number, since 5 + 443 + 208 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 15120023 = 544320828 / (5 + 4 + 4 + 3 + 2 + 0 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 544320792 and 544320801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7559976 + ... + 7560047.

Almost surely, 2^544320828 is an apocalyptic number.

It is an amenable number.

544320828 is an abundant number, since it is smaller than the sum of its proper divisors (831601356).

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

544320828 is a wasteful number, since it uses less digits than its factorization.

544320828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15120033 (or 15120028 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The square root of 544320828 is about 23330.6842591468. The cubic root of 544320828 is about 816.4914679198.

The spelling of 544320828 in words is "five hundred forty-four million, three hundred twenty thousand, eight hundred twenty-eight".