28062272 has 28 divisors (see below), whose sum is σ = 63642240. Its totient is φ = 12026496.

The previous prime is 28062271. The next prime is 28062283. The reversal of 28062272 is 27226082.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×28062272² = 1574982219603968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28062271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30872 + ... + 31767.

Almost surely, 2^28062272 is an apocalyptic number.

It is an amenable number.

28062272 is an abundant number, since it is smaller than the sum of its proper divisors (35579968).

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

28062272 is an equidigital number, since it uses as much as digits as its factorization.

28062272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62658 (or 62648 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 28062272 is about 5297.3835050900. The cubic root of 28062272 is about 303.8838429725.

The spelling of 28062272 in words is "twenty-eight million, sixty-two thousand, two hundred seventy-two".