290116644 has 12 divisors (see below), whose sum is σ = 676938864. Its totient is φ = 96705544.

The previous prime is 290116639. The next prime is 290116703. The reversal of 290116644 is 446611092.

It is a tau number, because it is divible by the number of its divisors (12).

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, 12088182 + ... + 12088205.

It is an arithmetic number, because the mean of its divisors is an integer number (56411572).

Almost surely, 2^290116644 is an apocalyptic number.

It is an amenable number.

290116644 is an abundant number, since it is smaller than the sum of its proper divisors (386822220).

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

290116644 is a wasteful number, since it uses less digits than its factorization.

290116644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24176394 (or 24176392 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 290116644 is about 17032.8108073800. The cubic root of 290116644 is about 661.9993276189. Note that the first 3 decimals are identical.

The spelling of 290116644 in words is "two hundred ninety million, one hundred sixteen thousand, six hundred forty-four".