290223290 has 32 divisors (see below), whose sum is σ = 628456320. Its totient is φ = 94267584.

The previous prime is 290223289. The next prime is 290223313. The reversal of 290223290 is 92322092.

It is a super-3 number, since 3×290223290³ (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 15 ways as a sum of consecutive naturals, for example, 107777 + ... + 110436.

It is an arithmetic number, because the mean of its divisors is an integer number (19639260).

Almost surely, 2^290223290 is an apocalyptic number.

290223290 is an abundant number, since it is smaller than the sum of its proper divisors (338233030).

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

290223290 is a wasteful number, since it uses less digits than its factorization.

290223290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218246.

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

The square root of 290223290 is about 17035.9411245754. The cubic root of 290223290 is about 662.0804339978.

The spelling of 290223290 in words is "two hundred ninety million, two hundred twenty-three thousand, two hundred ninety".