28828992 has 28 divisors (see below), whose sum is σ = 76277216. Its totient is φ = 9609600.

The previous prime is 28828937. The next prime is 28828997. The reversal of 28828992 is 29982882.

It is a super-2 number, since 2×28828992² = 1662221559472128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28828997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74884 + ... + 75267.

Almost surely, 2^28828992 is an apocalyptic number.

It is an amenable number.

28828992 is an abundant number, since it is smaller than the sum of its proper divisors (47448224).

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

28828992 is a wasteful number, since it uses less digits than its factorization.

28828992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150166 (or 150156 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 28828992 is about 5369.2636366638. The cubic root of 28828992 is about 306.6265942178.

The spelling of 28828992 in words is "twenty-eight million, eight hundred twenty-eight thousand, nine hundred ninety-two".