28422576 has 200 divisors, whose sum is σ = 101667104. Its totient is φ = 7464960.

The previous prime is 28422547. The next prime is 28422577. The reversal of 28422576 is 67522482.

28422576 is a `hidden beast` number, since 2 + 84 + 2 + 2 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 28422576.

It is not an unprimeable number, because it can be changed into a prime (28422577) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 117816 + ... + 118056.

Almost surely, 2^28422576 is an apocalyptic number.

28422576 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28422576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50833552).

28422576 is an abundant number, since it is smaller than the sum of its proper divisors (73244528).

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

28422576 is a wasteful number, since it uses less digits than its factorization.

28422576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 266 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28422576 is about 5331.2827724667. The cubic root of 28422576 is about 305.1788827919.

The spelling of 28422576 in words is "twenty-eight million, four hundred twenty-two thousand, five hundred seventy-six".