28350272 has 14 divisors (see below), whose sum is σ = 56257698. Its totient is φ = 14175104.

The previous prime is 28350269. The next prime is 28350277. The reversal of 28350272 is 27205382.

It can be written as a sum of positive squares in only one way, i.e., 16128256 + 12222016 = 4016^2 + 3496^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28350277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221423 + ... + 221550.

It is an arithmetic number, because the mean of its divisors is an integer number (4018407).

Almost surely, 2^28350272 is an apocalyptic number.

It is an amenable number.

28350272 is a deficient number, since it is larger than the sum of its proper divisors (27907426).

28350272 is an equidigital number, since it uses as much as digits as its factorization.

28350272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442985 (or 442975 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 28350272 is about 5324.4973471681. The cubic root of 28350272 is about 304.9198822082.

The spelling of 28350272 in words is "twenty-eight million, three hundred fifty thousand, two hundred seventy-two".