285890300446 has 4 divisors (see below), whose sum is σ = 428835450672. Its totient is φ = 142945150222.

The previous prime is 285890300419. The next prime is 285890300453. The reversal of 285890300446 is 644003098582.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 285890300446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71472575110 + ... + 71472575113.

It is an arithmetic number, because the mean of its divisors is an integer number (107208862668).

Almost surely, 2^285890300446 is an apocalyptic number.

285890300446 is a deficient number, since it is larger than the sum of its proper divisors (142945150226).

285890300446 is a wasteful number, since it uses less digits than its factorization.

285890300446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142945150225.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 285890300446 in words is "two hundred eighty-five billion, eight hundred ninety million, three hundred thousand, four hundred forty-six".