28313802 has 48 divisors (see below), whose sum is σ = 69245280. Its totient is φ = 8282400.

The previous prime is 28313801. The next prime is 28313807. The reversal of 28313802 is 20831382.

28313802 is a `hidden beast` number, since 283 + 1 + 380 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (28313801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3277 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (1442610).

Almost surely, 2^28313802 is an apocalyptic number.

28313802 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28313802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34622640).

28313802 is an abundant number, since it is smaller than the sum of its proper divisors (40931478).

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

28313802 is a wasteful number, since it uses less digits than its factorization.

28313802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979 (or 4976 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28313802 is about 5321.0715086343. The cubic root of 28313802 is about 304.7890757033.

It can be divided in two parts, 2831380 and 2, that added together give a palindrome (2831382).

The spelling of 28313802 in words is "twenty-eight million, three hundred thirteen thousand, eight hundred two".