28902244 has 24 divisors (see below), whose sum is σ = 61205760. Its totient is φ = 11657856.

The previous prime is 28902239. The next prime is 28902257. The reversal of 28902244 is 44220982.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29884 + ... + 30835.

It is an arithmetic number, because the mean of its divisors is an integer number (2550240).

Almost surely, 2^28902244 is an apocalyptic number.

It is an amenable number.

28902244 is an abundant number, since it is smaller than the sum of its proper divisors (32303516).

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

28902244 is a wasteful number, since it uses less digits than its factorization.

28902244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60747 (or 60745 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28902244 is about 5376.0807285605. The cubic root of 28902244 is about 306.8860785389.

The spelling of 28902244 in words is "twenty-eight million, nine hundred two thousand, two hundred forty-four".