28531060 has 12 divisors (see below), whose sum is σ = 59915268. Its totient is φ = 11412416.

The previous prime is 28531057. The next prime is 28531073. The reversal of 28531060 is 6013582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16875664 + 11655396 = 4108^2 + 3414^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713257 + ... + 713296.

It is an arithmetic number, because the mean of its divisors is an integer number (4992939).

Almost surely, 2^28531060 is an apocalyptic number.

28531060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28531060 is an abundant number, since it is smaller than the sum of its proper divisors (31384208).

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

28531060 is a wasteful number, since it uses less digits than its factorization.

28531060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426562 (or 1426560 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 28531060 is about 5341.4473693934. The cubic root of 28531060 is about 305.5666613166.

The spelling of 28531060 in words is "twenty-eight million, five hundred thirty-one thousand, sixty".