28464514 has 16 divisors (see below), whose sum is σ = 46501560. Its totient is φ = 12988800.

The previous prime is 28464509. The next prime is 28464521. The reversal of 28464514 is 41546482.

It can be written as a sum of positive squares in 4 ways, for example, as 12996025 + 15468489 = 3605^2 + 3933^2 .

It is a super-3 number, since 3×28464514³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28464514.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3837 + ... + 8464.

Almost surely, 2^28464514 is an apocalyptic number.

28464514 is a deficient number, since it is larger than the sum of its proper divisors (18037046).

28464514 is a wasteful number, since it uses less digits than its factorization.

28464514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12405.

The product of its digits is 30720, while the sum is 34.

The square root of 28464514 is about 5335.2145223974. The cubic root of 28464514 is about 305.3289079256.

The spelling of 28464514 in words is "twenty-eight million, four hundred sixty-four thousand, five hundred fourteen".