28124246 has 4 divisors (see below), whose sum is σ = 42186372. Its totient is φ = 14062122.

The previous prime is 28124221. The next prime is 28124293. The reversal of 28124246 is 64242182.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7031060 + ... + 7031063.

It is an arithmetic number, because the mean of its divisors is an integer number (10546593).

Almost surely, 2^28124246 is an apocalyptic number.

28124246 is a deficient number, since it is larger than the sum of its proper divisors (14062126).

28124246 is a wasteful number, since it uses less digits than its factorization.

28124246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14062125.

The product of its digits is 6144, while the sum is 29.

The square root of 28124246 is about 5303.2297706209. The cubic root of 28124246 is about 304.1073821364.

The spelling of 28124246 in words is "twenty-eight million, one hundred twenty-four thousand, two hundred forty-six".