28510484 has 12 divisors (see below), whose sum is σ = 50287104. Its totient is φ = 14142744.

The previous prime is 28510459. The next prime is 28510487. The reversal of 28510484 is 48401582.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28510484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28510487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27554 + ... + 28569.

It is an arithmetic number, because the mean of its divisors is an integer number (4190592).

Almost surely, 2^28510484 is an apocalyptic number.

It is an amenable number.

28510484 is a deficient number, since it is larger than the sum of its proper divisors (21776620).

28510484 is a wasteful number, since it uses less digits than its factorization.

28510484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56254 (or 56252 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 28510484 is about 5339.5209522953. The cubic root of 28510484 is about 305.4931875695.

The spelling of 28510484 in words is "twenty-eight million, five hundred ten thousand, four hundred eighty-four".