284790730 has 64 divisors (see below), whose sum is σ = 617725440. Its totient is φ = 92461824.

The previous prime is 284790721. The next prime is 284790733. The reversal of 284790730 is 37097482.

It is a super-2 number, since 2×284790730² = 162211519787865800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (284790733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106267 + ... + 108913.

It is an arithmetic number, because the mean of its divisors is an integer number (9651960).

Almost surely, 2^284790730 is an apocalyptic number.

284790730 is an abundant number, since it is smaller than the sum of its proper divisors (332934710).

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

284790730 is a wasteful number, since it uses less digits than its factorization.

284790730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 284790730 is about 16875.7438354580. The cubic root of 284790730 is about 657.9233241832.

The spelling of 284790730 in words is "two hundred eighty-four million, seven hundred ninety thousand, seven hundred thirty".