290447442860 has 24 divisors (see below), whose sum is σ = 610111738320. Its totient is φ = 116146194624.

The previous prime is 290447442841. The next prime is 290447442871. The reversal of 290447442860 is 68244744092.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 290447442799 and 290447442808.

It is an unprimeable number.

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, 1976195 + ... + 2118074.

It is an arithmetic number, because the mean of its divisors is an integer number (25421322430).

Almost surely, 2^290447442860 is an apocalyptic number.

290447442860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290447442860 is an abundant number, since it is smaller than the sum of its proper divisors (319664295460).

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

290447442860 is a wasteful number, since it uses less digits than its factorization.

290447442860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4097825 (or 4097823 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 50.

The spelling of 290447442860 in words is "two hundred ninety billion, four hundred forty-seven million, four hundred forty-two thousand, eight hundred sixty".