28598240 has 48 divisors (see below), whose sum is σ = 73710000. Its totient is φ = 10398720.

The previous prime is 28598209. The next prime is 28598257. The reversal of 28598240 is 4289582.

It is a junction number, because it is equal to n+sod(n) for n = 28598194 and 28598203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6365 + ... + 9884.

It is an arithmetic number, because the mean of its divisors is an integer number (1535625).

Almost surely, 2^28598240 is an apocalyptic number.

28598240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28598240 is an abundant number, since it is smaller than the sum of its proper divisors (45111760).

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

28598240 is a wasteful number, since it uses less digits than its factorization.

28598240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16275 (or 16267 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 28598240 is about 5347.7322296465. The cubic root of 28598240 is about 305.8063051462.

The spelling of 28598240 in words is "twenty-eight million, five hundred ninety-eight thousand, two hundred forty".