28486752 has 48 divisors (see below), whose sum is σ = 85462272. Its totient is φ = 8138880.

The previous prime is 28486751. The next prime is 28486753. The reversal of 28486752 is 25768482.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28486751) and next prime (28486753).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×28486752² = 1622990079019008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28486751) 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 7 ways as a sum of consecutive naturals, for example, 20524 + ... + 21867.

It is an arithmetic number, because the mean of its divisors is an integer number (1780464).

Almost surely, 2^28486752 is an apocalyptic number.

It is an amenable number.

28486752 is an abundant number, since it is smaller than the sum of its proper divisors (56975520).

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

28486752 is a wasteful number, since it uses less digits than its factorization.

28486752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42411 (or 42403 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 28486752 is about 5337.2981929062. The cubic root of 28486752 is about 305.4084003163.

The spelling of 28486752 in words is "twenty-eight million, four hundred eighty-six thousand, seven hundred fifty-two".