290240930 has 32 divisors (see below), whose sum is σ = 598147200. Its totient is φ = 99331200.

The previous prime is 290240917. The next prime is 290240947. The reversal of 290240930 is 39042092.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 290240893 and 290240902.

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 15 ways as a sum of consecutive naturals, for example, 38621 + ... + 45519.

It is an arithmetic number, because the mean of its divisors is an integer number (18692100).

Almost surely, 2^290240930 is an apocalyptic number.

290240930 is an abundant number, since it is smaller than the sum of its proper divisors (307906270).

290240930 is a wasteful number, since it uses less digits than its factorization.

290240930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 290240930 is about 17036.4588456639. The cubic root of 290240930 is about 662.0938476493.

The spelling of 290240930 in words is "two hundred ninety million, two hundred forty thousand, nine hundred thirty".