28059372 has 60 divisors (see below), whose sum is σ = 80031336. Its totient is φ = 8501760.

The previous prime is 28059347. The next prime is 28059373. The reversal of 28059372 is 27395082.

It is a happy number.

28059372 is a `hidden beast` number, since 280 + 5 + 9 + 372 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (28059373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 373 + ... + 7500.

Almost surely, 2^28059372 is an apocalyptic number.

28059372 is a gapful number since it is divisible by the number (22) 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 28059372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40015668).

28059372 is an abundant number, since it is smaller than the sum of its proper divisors (51971964).

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

28059372 is a wasteful number, since it uses less digits than its factorization.

28059372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7900 (or 7889 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 28059372 is about 5297.1097779827. The cubic root of 28059372 is about 303.8733746647.

The spelling of 28059372 in words is "twenty-eight million, fifty-nine thousand, three hundred seventy-two".