285848999040 has 1024 divisors, whose sum is σ = 1082916864000. Its totient is φ = 63402393600.

The previous prime is 285848999011. The next prime is 285848999071. The reversal of 285848999040 is 40999848582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2250779457 + ... + 2250779583.

It is an arithmetic number, because the mean of its divisors is an integer number (1057536000).

Almost surely, 2^285848999040 is an apocalyptic number.

285848999040 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 285848999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (541458432000).

285848999040 is an abundant number, since it is smaller than the sum of its proper divisors (797067864960).

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

285848999040 is a wasteful number, since it uses less digits than its factorization.

285848999040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 66.

The spelling of 285848999040 in words is "two hundred eighty-five billion, eight hundred forty-eight million, nine hundred ninety-nine thousand, forty".