28955436 has 24 divisors (see below), whose sum is σ = 70500864. Its totient is φ = 9232080.

The previous prime is 28955417. The next prime is 28955441. The reversal of 28955436 is 63455982.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52180 + ... + 52731.

It is an arithmetic number, because the mean of its divisors is an integer number (2937536).

Almost surely, 2^28955436 is an apocalyptic number.

It is an amenable number.

28955436 is an abundant number, since it is smaller than the sum of its proper divisors (41545428).

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

28955436 is a wasteful number, since it uses less digits than its factorization.

28955436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104941 (or 104939 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 28955436 is about 5381.0255528105. The cubic root of 28955436 is about 307.0742286390.

The spelling of 28955436 in words is "twenty-eight million, nine hundred fifty-five thousand, four hundred thirty-six".