28845534 has 32 divisors (see below), whose sum is σ = 60975360. Its totient is φ = 9072000.

The previous prime is 28845529. The next prime is 28845559. The reversal of 28845534 is 43554882.

It is a junction number, because it is equal to n+sod(n) for n = 28845492 and 28845501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45399 + ... + 46029.

It is an arithmetic number, because the mean of its divisors is an integer number (1905480).

Almost surely, 2^28845534 is an apocalyptic number.

28845534 is an abundant number, since it is smaller than the sum of its proper divisors (32129826).

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

28845534 is a wasteful number, since it uses less digits than its factorization.

28845534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056.

The product of its digits is 153600, while the sum is 39.

The square root of 28845534 is about 5370.8038504492. The cubic root of 28845534 is about 306.6852301827.

The spelling of 28845534 in words is "twenty-eight million, eight hundred forty-five thousand, five hundred thirty-four".