28642952 has 32 divisors (see below), whose sum is σ = 59837400. Its totient is φ = 12762624.

The previous prime is 28642931. The next prime is 28642963. The reversal of 28642952 is 25924682.

It can be written as a sum of positive squares in 4 ways, for example, as 12208036 + 16434916 = 3494^2 + 4054^2 .

It is an unprimeable number.

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, 1733 + ... + 7764.

Almost surely, 2^28642952 is an apocalyptic number.

It is an amenable number.

28642952 is an abundant number, since it is smaller than the sum of its proper divisors (31194448).

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

28642952 is a wasteful number, since it uses less digits than its factorization.

28642952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9545 (or 9541 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 28642952 is about 5351.9110605465. The cubic root of 28642952 is about 305.9655934089.

The spelling of 28642952 in words is "twenty-eight million, six hundred forty-two thousand, nine hundred fifty-two".