28555464 has 64 divisors (see below), whose sum is σ = 84234240. Its totient is φ = 7894080.

The previous prime is 28555463. The next prime is 28555519. The reversal of 28555464 is 46455582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28555463) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2467 + ... + 7949.

It is an arithmetic number, because the mean of its divisors is an integer number (1316160).

Almost surely, 2^28555464 is an apocalyptic number.

28555464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28555464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42117120).

28555464 is an abundant number, since it is smaller than the sum of its proper divisors (55678776).

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

28555464 is a wasteful number, since it uses less digits than its factorization.

28555464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5530 (or 5526 counting only the distinct ones).

The product of its digits is 192000, while the sum is 39.

The square root of 28555464 is about 5343.7312806690. The cubic root of 28555464 is about 305.6537584859.

The spelling of 28555464 in words is "twenty-eight million, five hundred fifty-five thousand, four hundred sixty-four".