28502152 has 32 divisors (see below), whose sum is σ = 63734400. Its totient is φ = 11683584.

The previous prime is 28502143. The next prime is 28502153. The reversal of 28502152 is 25120582.

It is a super-2 number, since 2×28502152² = 1624745337262208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28502153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9777 + ... + 12352.

It is an arithmetic number, because the mean of its divisors is an integer number (1991700).

Almost surely, 2^28502152 is an apocalyptic number.

It is an amenable number.

28502152 is an abundant number, since it is smaller than the sum of its proper divisors (35232248).

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

28502152 is a wasteful number, since it uses less digits than its factorization.

28502152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22165 (or 22161 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 28502152 is about 5338.7406754777. The cubic root of 28502152 is about 305.4634252168.

The spelling of 28502152 in words is "twenty-eight million, five hundred two thousand, one hundred fifty-two".