290609122 has 8 divisors (see below), whose sum is σ = 435990096. Its totient is φ = 145279092.

The previous prime is 290609113. The next prime is 290609129. The reversal of 290609122 is 221906092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×290609122² = 168907323579221768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290609129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8833 + ... + 25675.

It is an arithmetic number, because the mean of its divisors is an integer number (54498762).

Almost surely, 2^290609122 is an apocalyptic number.

290609122 is a deficient number, since it is larger than the sum of its proper divisors (145380974).

290609122 is a wasteful number, since it uses less digits than its factorization.

290609122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25472.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 290609122 is about 17047.2614222930. The cubic root of 290609122 is about 662.3737009506.

The spelling of 290609122 in words is "two hundred ninety million, six hundred nine thousand, one hundred twenty-two".