290880105 has 16 divisors (see below), whose sum is σ = 465676800. Its totient is φ = 155046528.

The previous prime is 290880097. The next prime is 290880127. The reversal of 290880105 is 501088092.

It is a happy number.

It is not a de Polignac number, because 290880105 - 2³ = 290880097 is a prime.

It is a super-2 number, since 2×290880105² = 169222470969622050, which contains 22 as substring.

It is a Curzon number.

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, 27621 + ... + 36669.

It is an arithmetic number, because the mean of its divisors is an integer number (29104800).

Almost surely, 2^290880105 is an apocalyptic number.

It is an amenable number.

290880105 is a deficient number, since it is larger than the sum of its proper divisors (174796695).

290880105 is a wasteful number, since it uses less digits than its factorization.

290880105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11200.

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 290880105 is about 17055.2075625013. The cubic root of 290880105 is about 662.5795172147.

The spelling of 290880105 in words is "two hundred ninety million, eight hundred eighty thousand, one hundred five".