288730146 has 16 divisors (see below), whose sum is σ = 577684800. Its totient is φ = 96205968.

The previous prime is 288730133. The next prime is 288730207. The reversal of 288730146 is 641037882.

It is a super-3 number, since 3×288730146³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10660 + ... + 26288.

It is an arithmetic number, because the mean of its divisors is an integer number (36105300).

Almost surely, 2^288730146 is an apocalyptic number.

288730146 is an abundant number, since it is smaller than the sum of its proper divisors (288954654).

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

288730146 is a wasteful number, since it uses less digits than its factorization.

288730146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18713.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 288730146 is about 16992.0612640139. The cubic root of 288730146 is about 660.9430549763.

It can be divided in two parts, 2887 and 30146, that added together give a palindrome (33033).

The spelling of 288730146 in words is "two hundred eighty-eight million, seven hundred thirty thousand, one hundred forty-six".