28486450 has 12 divisors (see below), whose sum is σ = 52984890. Its totient is φ = 11394560.

The previous prime is 28486433. The next prime is 28486501. The reversal of 28486450 is 5468482.

It can be written as a sum of positive squares in 3 ways, for example, as 27029601 + 1456849 = 5199^2 + 1207^2 .

It is a super-2 number, since 2×28486450² = 1622955667205000, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 284815 + ... + 284914.

Almost surely, 2^28486450 is an apocalyptic number.

28486450 is a deficient number, since it is larger than the sum of its proper divisors (24498440).

28486450 is a wasteful number, since it uses less digits than its factorization.

28486450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569741 (or 569736 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 28486450 is about 5337.2699013634. The cubic root of 28486450 is about 305.4073210584.

The spelling of 28486450 in words is "twenty-eight million, four hundred eighty-six thousand, four hundred fifty".