28943552 has 28 divisors (see below), whose sum is σ = 62657736. Its totient is φ = 13155840.

The previous prime is 28943543. The next prime is 28943557. The reversal of 28943552 is 25534982.

It is not an unprimeable number, because it can be changed into a prime (28943557) by changing a digit.

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, 19853 + ... + 21260.

Almost surely, 2^28943552 is an apocalyptic number.

28943552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28943552 is an abundant number, since it is smaller than the sum of its proper divisors (33714184).

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

28943552 is a wasteful number, since it uses less digits than its factorization.

28943552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41136 (or 41126 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 28943552 is about 5379.9211890138. The cubic root of 28943552 is about 307.0322127000.

It can be divided in two parts, 2894 and 3552, that added together give a palindrome (6446).

The spelling of 28943552 in words is "twenty-eight million, nine hundred forty-three thousand, five hundred fifty-two".