290469889870 has 32 divisors (see below), whose sum is σ = 553664986848. Its totient is φ = 109340817408.

The previous prime is 290469889847. The next prime is 290469889889. The reversal of 290469889870 is 78988964092.

It is a self number, because there is not a number n which added to its sum of digits gives 290469889870.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1459789 + ... + 1646791.

It is an arithmetic number, because the mean of its divisors is an integer number (17302030839).

Almost surely, 2^290469889870 is an apocalyptic number.

290469889870 is a deficient number, since it is larger than the sum of its proper divisors (263195096978).

290469889870 is a wasteful number, since it uses less digits than its factorization.

290469889870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196164.

The product of its (nonzero) digits is 125411328, while the sum is 70.

The spelling of 290469889870 in words is "two hundred ninety billion, four hundred sixty-nine million, eight hundred eighty-nine thousand, eight hundred seventy".