28825044 has 12 divisors (see below), whose sum is σ = 67258464. Its totient is φ = 9608344.

The previous prime is 28825039. The next prime is 28825117. The reversal of 28825044 is 44052882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 28824996 and 28825014.

It is a congruent number.

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, 1201032 + ... + 1201055.

It is an arithmetic number, because the mean of its divisors is an integer number (5604872).

Almost surely, 2^28825044 is an apocalyptic number.

It is an amenable number.

28825044 is an abundant number, since it is smaller than the sum of its proper divisors (38433420).

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

28825044 is a wasteful number, since it uses less digits than its factorization.

28825044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402094 (or 2402092 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 28825044 is about 5368.8959758967. The cubic root of 28825044 is about 306.6125965373.

The spelling of 28825044 in words is "twenty-eight million, eight hundred twenty-five thousand, forty-four".