28483620 has 96 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 6821760.

The previous prime is 28483613. The next prime is 28483621. The reversal of 28483620 is 2638482.

It is a super-2 number, since 2×28483620² = 1622633216608800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (28483621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67771 + ... + 68189.

It is an arithmetic number, because the mean of its divisors is an integer number (917280).

Almost surely, 2^28483620 is an apocalyptic number.

28483620 is a gapful number since it is divisible by the number (20) 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 28483620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

28483620 is an abundant number, since it is smaller than the sum of its proper divisors (59575260).

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

28483620 is a wasteful number, since it uses less digits than its factorization.

28483620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 28483620 is about 5337.0047779630. The cubic root of 28483620 is about 305.3972071113.

The spelling of 28483620 in words is "twenty-eight million, four hundred eighty-three thousand, six hundred twenty".