284925990 has 16 divisors (see below), whose sum is σ = 683822448. Its totient is φ = 75980256.

The previous prime is 284925989. The next prime is 284926003. The reversal of 284925990 is 99529482.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 4748737 + ... + 4748796.

It is an arithmetic number, because the mean of its divisors is an integer number (42738903).

Almost surely, 2^284925990 is an apocalyptic number.

284925990 is an abundant number, since it is smaller than the sum of its proper divisors (398896458).

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

284925990 is a wasteful number, since it uses less digits than its factorization.

284925990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9497543.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 284925990 is about 16879.7508867874. The cubic root of 284925990 is about 658.0274668800.

The spelling of 284925990 in words is "two hundred eighty-four million, nine hundred twenty-five thousand, nine hundred ninety".