290122112 has 32 divisors (see below), whose sum is σ = 660547920. Its totient is φ = 124337664.

The previous prime is 290122073. The next prime is 290122121. The reversal of 290122112 is 211221092.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161003 + ... + 162794.

Almost surely, 2^290122112 is an apocalyptic number.

It is an amenable number.

290122112 is an abundant number, since it is smaller than the sum of its proper divisors (370425808).

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

290122112 is an equidigital number, since it uses as much as digits as its factorization.

290122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323818 (or 323806 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 290122112 is about 17032.9713203539. The cubic root of 290122112 is about 662.0034866238.

The spelling of 290122112 in words is "two hundred ninety million, one hundred twenty-two thousand, one hundred twelve".