28485072 has 180 divisors, whose sum is σ = 101439936. Its totient is φ = 7378560.

The previous prime is 28485071. The next prime is 28485089. The reversal of 28485072 is 27058482.

It is a happy number.

It is a super-2 number, since 2×28485072² = 1622798653690368, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28485071) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77433 + ... + 77799.

Almost surely, 2^28485072 is an apocalyptic number.

28485072 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 28485072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50719968).

28485072 is an abundant number, since it is smaller than the sum of its proper divisors (72954864).

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

28485072 is a wasteful number, since it uses less digits than its factorization.

28485072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 28485072 is about 5337.1408075860. The cubic root of 28485072 is about 305.4023964003.

The spelling of 28485072 in words is "twenty-eight million, four hundred eighty-five thousand, seventy-two".