28606260 has 48 divisors (see below), whose sum is σ = 80410176. Its totient is φ = 7598592.

The previous prime is 28606241. The next prime is 28606297. The reversal of 28606260 is 6260682.

28606260 = T₂₆₉ + T₂₇₀ + ... + T₅₇₅.

It is a super-2 number, since 2×28606260² = 1636636222375200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17644 + ... + 19196.

It is an arithmetic number, because the mean of its divisors is an integer number (1675212).

Almost surely, 2^28606260 is an apocalyptic number.

28606260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28606260 is an abundant number, since it is smaller than the sum of its proper divisors (51803916).

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

28606260 is a wasteful number, since it uses less digits than its factorization.

28606260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 28606260 is about 5348.4820276411. The cubic root of 28606260 is about 305.8348889255.

The spelling of 28606260 in words is "twenty-eight million, six hundred six thousand, two hundred sixty".