28469530 has 8 divisors (see below), whose sum is σ = 51245172. Its totient is φ = 11387808.

The previous prime is 28469527. The next prime is 28469549. The reversal of 28469530 is 3596482.

It can be written as a sum of positive squares in 2 ways, for example, as 28398241 + 71289 = 5329^2 + 267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28469530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423467 + ... + 1423486.

Almost surely, 2^28469530 is an apocalyptic number.

28469530 is a deficient number, since it is larger than the sum of its proper divisors (22775642).

28469530 is a wasteful number, since it uses less digits than its factorization.

28469530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846960.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 28469530 is about 5335.6845858802. The cubic root of 28469530 is about 305.3468418327.

The spelling of 28469530 in words is "twenty-eight million, four hundred sixty-nine thousand, five hundred thirty".