290168961 has 8 divisors (see below), whose sum is σ = 387045120. Its totient is φ = 193369392.

The previous prime is 290168939. The next prime is 290169017. The reversal of 290168961 is 169861092.

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

It is not a de Polignac number, because 290168961 - 2⁹ = 290168449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290168261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9630 + ... + 25943.

It is an arithmetic number, because the mean of its divisors is an integer number (48380640).

Almost surely, 2^290168961 is an apocalyptic number.

It is an amenable number.

290168961 is a deficient number, since it is larger than the sum of its proper divisors (96876159).

290168961 is a wasteful number, since it uses less digits than its factorization.

290168961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38295.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 290168961 is about 17034.3465093323. The cubic root of 290168961 is about 662.0391182088.

The spelling of 290168961 in words is "two hundred ninety million, one hundred sixty-eight thousand, nine hundred sixty-one".