28630160 has 40 divisors (see below), whose sum is σ = 71688120. Its totient is φ = 10570752.

The previous prime is 28630157. The next prime is 28630171. The reversal of 28630160 is 6103682.

It can be written as a sum of positive squares in 4 ways, for example, as 71824 + 28558336 = 268^2 + 5344^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 12725 + ... + 14804.

It is an arithmetic number, because the mean of its divisors is an integer number (1792203).

Almost surely, 2^28630160 is an apocalyptic number.

28630160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28630160 is an abundant number, since it is smaller than the sum of its proper divisors (43057960).

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

28630160 is a wasteful number, since it uses less digits than its factorization.

28630160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27555 (or 27549 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 28630160 is about 5350.7158399601. The cubic root of 28630160 is about 305.9200383433.

The spelling of 28630160 in words is "twenty-eight million, six hundred thirty thousand, one hundred sixty".