28014530 has 16 divisors (see below), whose sum is σ = 50994360. Its totient is φ = 11079552.

The previous prime is 28014523. The next prime is 28014559. The reversal of 28014530 is 3541082.

It can be written as a sum of positive squares in 4 ways, for example, as 20457529 + 7557001 = 4523^2 + 2749^2 .

It is a super-2 number, since 2×28014530² = 1569627782241800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28014496 and 28014505.

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, 14849 + ... + 16628.

Almost surely, 2^28014530 is an apocalyptic number.

28014530 is a deficient number, since it is larger than the sum of its proper divisors (22979830).

28014530 is a wasteful number, since it uses less digits than its factorization.

28014530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31573.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28014530 is about 5292.8754000071. The cubic root of 28014530 is about 303.7114138637.

The spelling of 28014530 in words is "twenty-eight million, fourteen thousand, five hundred thirty".