285903004452 has 48 divisors (see below), whose sum is σ = 718685352000. Its totient is φ = 87938022528.

The previous prime is 285903004411. The next prime is 285903004459. The reversal of 285903004452 is 254400309582.

It is not an unprimeable number, because it can be changed into a prime (285903004459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95503 + ... + 762185.

It is an arithmetic number, because the mean of its divisors is an integer number (14972611500).

Almost surely, 2^285903004452 is an apocalyptic number.

It is an amenable number.

285903004452 is an abundant number, since it is smaller than the sum of its proper divisors (432782347548).

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

285903004452 is a wasteful number, since it uses less digits than its factorization.

285903004452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669452 (or 669450 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 285903004452 in words is "two hundred eighty-five billion, nine hundred three million, four thousand, four hundred fifty-two".