28410660 has 36 divisors (see below), whose sum is σ = 86179548. Its totient is φ = 7576128.

The previous prime is 28410637. The next prime is 28410661. The reversal of 28410660 is 6601482.

It can be written as a sum of positive squares in 2 ways, for example, as 19554084 + 8856576 = 4422^2 + 2976^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (28410661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78739 + ... + 79098.

Almost surely, 2^28410660 is an apocalyptic number.

28410660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28410660 is an abundant number, since it is smaller than the sum of its proper divisors (57768888).

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

28410660 is a wasteful number, since it uses less digits than its factorization.

28410660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157852 (or 157847 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28410660 is about 5330.1651006324. The cubic root of 28410660 is about 305.1362286721.

The spelling of 28410660 in words is "twenty-eight million, four hundred ten thousand, six hundred sixty".