28799283240 has 384 divisors, whose sum is σ = 118805356800. Its totient is φ = 6076062720.

The previous prime is 28799283209. The next prime is 28799283251. The reversal of 28799283240 is 4238299782.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1266370 + ... + 1288910.

It is an arithmetic number, because the mean of its divisors is an integer number (309388950).

Almost surely, 2^28799283240 is an apocalyptic number.

28799283240 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 28799283240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59402678400).

28799283240 is an abundant number, since it is smaller than the sum of its proper divisors (90006073560).

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

28799283240 is a wasteful number, since it uses less digits than its factorization.

28799283240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22594 (or 22571 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 28799283240 in words is "twenty-eight billion, seven hundred ninety-nine million, two hundred eighty-three thousand, two hundred forty".