28150016 has 18 divisors (see below), whose sum is σ = 56190582. Its totient is φ = 14074880.

The previous prime is 28149973. The next prime is 28150019. The reversal of 28150016 is 61005182.

It can be written as a sum of positive squares in only one way, i.e., 28047616 + 102400 = 5296^2 + 320^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28149973 and 28150000.

It is not an unprimeable number, because it can be changed into a prime (28150019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54725 + ... + 55236.

It is an arithmetic number, because the mean of its divisors is an integer number (3121699).

Almost surely, 2^28150016 is an apocalyptic number.

It is an amenable number.

28150016 is a deficient number, since it is larger than the sum of its proper divisors (28040566).

28150016 is an equidigital number, since it uses as much as digits as its factorization.

28150016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109977 (or 109963 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28150016 is about 5305.6588657772. The cubic root of 28150016 is about 304.2002374239.

Adding to 28150016 its reverse (61005182), we get a palindrome (89155198).

The spelling of 28150016 in words is "twenty-eight million, one hundred fifty thousand, sixteen".