28462265 has 8 divisors (see below), whose sum is σ = 36782088. Its totient is φ = 21018240.

The previous prime is 28462243. The next prime is 28462279. The reversal of 28462265 is 56226482.

It can be written as a sum of positive squares in 4 ways, for example, as 4910656 + 23551609 = 2216^2 + 4853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28462265 - 2¹⁰ = 28461241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218876 + ... + 219005.

It is an arithmetic number, because the mean of its divisors is an integer number (4597761).

Almost surely, 2^28462265 is an apocalyptic number.

It is an amenable number.

28462265 is a deficient number, since it is larger than the sum of its proper divisors (8319823).

28462265 is a wasteful number, since it uses less digits than its factorization.

28462265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437899.

The product of its digits is 46080, while the sum is 35.

The square root of 28462265 is about 5335.0037488272. The cubic root of 28462265 is about 305.3208663011.

The spelling of 28462265 in words is "twenty-eight million, four hundred sixty-two thousand, two hundred sixty-five".