290009688 has 16 divisors (see below), whose sum is σ = 725024280. Its totient is φ = 96669888.

The previous prime is 290009659. The next prime is 290009689. The reversal of 290009688 is 886900092.

It is a super-3 number, since 3×290009688³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290009689) by changing a digit.

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, 6041845 + ... + 6041892.

Almost surely, 2^290009688 is an apocalyptic number.

It is an amenable number.

290009688 is an abundant number, since it is smaller than the sum of its proper divisors (435014592).

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

290009688 is a wasteful number, since it uses less digits than its factorization.

290009688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12083746 (or 12083742 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 290009688 is about 17029.6708130251. The cubic root of 290009688 is about 661.9179655135.

The spelling of 290009688 in words is "two hundred ninety million, nine thousand, six hundred eighty-eight".