28912246 has 16 divisors (see below), whose sum is σ = 48943440. Its totient is φ = 12688480.

The previous prime is 28912193. The next prime is 28912249. The reversal of 28912246 is 64221982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28912249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22021 + ... + 23296.

It is an arithmetic number, because the mean of its divisors is an integer number (3058965).

Almost surely, 2^28912246 is an apocalyptic number.

28912246 is a deficient number, since it is larger than the sum of its proper divisors (20031194).

28912246 is a wasteful number, since it uses less digits than its factorization.

28912246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45359.

The product of its digits is 13824, while the sum is 34.

The square root of 28912246 is about 5377.0108796617. The cubic root of 28912246 is about 306.9214751048.

The spelling of 28912246 in words is "twenty-eight million, nine hundred twelve thousand, two hundred forty-six".