28846240 has 24 divisors (see below), whose sum is σ = 68149620. Its totient is φ = 11538432.

The previous prime is 28846231. The next prime is 28846241. The reversal of 28846240 is 4264882.

It can be written as a sum of positive squares in 2 ways, for example, as 28344976 + 501264 = 5324^2 + 708^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28846196 and 28846205.

It is not an unprimeable number, because it can be changed into a prime (28846241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89985 + ... + 90304.

Almost surely, 2^28846240 is an apocalyptic number.

28846240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28846240 is an abundant number, since it is smaller than the sum of its proper divisors (39303380).

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

28846240 is a wasteful number, since it uses less digits than its factorization.

28846240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180304 (or 180296 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28846240 is about 5370.8695757763. The cubic root of 28846240 is about 306.6877322223.

The spelling of 28846240 in words is "twenty-eight million, eight hundred forty-six thousand, two hundred forty".