28464004 has 12 divisors (see below), whose sum is σ = 51027228. Its totient is φ = 13884800.

The previous prime is 28463959. The next prime is 28464011. The reversal of 28464004 is 40046482.

It can be written as a sum of positive squares in 2 ways, for example, as 2433600 + 26030404 = 1560^2 + 5102^2 .

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 3 ways as a sum of consecutive naturals, for example, 86617 + ... + 86944.

It is an arithmetic number, because the mean of its divisors is an integer number (4252269).

Almost surely, 2^28464004 is an apocalyptic number.

It is an amenable number.

28464004 is a deficient number, since it is larger than the sum of its proper divisors (22563224).

28464004 is a wasteful number, since it uses less digits than its factorization.

28464004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173606 (or 173604 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 28464004 is about 5335.1667265419. The cubic root of 28464004 is about 305.3270843840.

The spelling of 28464004 in words is "twenty-eight million, four hundred sixty-four thousand, four".