550304728 has 8 divisors (see below), whose sum is σ = 1031821380. Its totient is φ = 275152360.

The previous prime is 550304723. The next prime is 550304743. The reversal of 550304728 is 827403055.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 550304693 and 550304702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550304723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34394038 + ... + 34394053.

Almost surely, 2^550304728 is an apocalyptic number.

It is an amenable number.

550304728 is a deficient number, since it is larger than the sum of its proper divisors (481516652).

550304728 is a wasteful number, since it uses less digits than its factorization.

550304728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68788097 (or 68788093 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 550304728 is about 23458.5747222631. The cubic root of 550304728 is about 819.4725578954.

The spelling of 550304728 in words is "five hundred fifty million, three hundred four thousand, seven hundred twenty-eight".