290887064 has 32 divisors (see below), whose sum is σ = 589592640. Its totient is φ = 133747200.

The previous prime is 290887063. The next prime is 290887067. The reversal of 290887064 is 460788092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290887063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23024 + ... + 33344.

It is an arithmetic number, because the mean of its divisors is an integer number (18424770).

Almost surely, 2^290887064 is an apocalyptic number.

It is an amenable number.

290887064 is an abundant number, since it is smaller than the sum of its proper divisors (298705576).

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

290887064 is a wasteful number, since it uses less digits than its factorization.

290887064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10611 (or 10607 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 290887064 is about 17055.4115752157. The cubic root of 290887064 is about 662.5848010115.

The spelling of 290887064 in words is "two hundred ninety million, eight hundred eighty-seven thousand, sixty-four".