28470588 has 48 divisors (see below), whose sum is σ = 70398720. Its totient is φ = 8930304.

The previous prime is 28470499. The next prime is 28470613. The reversal of 28470588 is 88507482.

It is a super-3 number, since 3×28470588³ (a number of 23 digits) contains 333 as substring.

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, 43681 + ... + 44327.

It is an arithmetic number, because the mean of its divisors is an integer number (1466640).

Almost surely, 2^28470588 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28470588, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35199360).

28470588 is an abundant number, since it is smaller than the sum of its proper divisors (41928132).

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

28470588 is a wasteful number, since it uses less digits than its factorization.

28470588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The square root of 28470588 is about 5335.7837287506. The cubic root of 28470588 is about 305.3506242737.

The spelling of 28470588 in words is "twenty-eight million, four hundred seventy thousand, five hundred eighty-eight".