290195808488 has 16 divisors (see below), whose sum is σ = 555694102080. Its totient is φ = 142010714608.

The previous prime is 290195808443. The next prime is 290195808499. The reversal of 290195808488 is 884808591092.

It is a happy number.

It is a super-2 number, since 2×290195808488² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 290195808488.

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 3 ways as a sum of consecutive naturals, for example, 385898306 + ... + 385899057.

It is an arithmetic number, because the mean of its divisors is an integer number (34730881380).

Almost surely, 2^290195808488 is an apocalyptic number.

It is an amenable number.

290195808488 is a deficient number, since it is larger than the sum of its proper divisors (265498293592).

290195808488 is a wasteful number, since it uses less digits than its factorization.

290195808488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771797416 (or 771797412 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 62.

The spelling of 290195808488 in words is "two hundred ninety billion, one hundred ninety-five million, eight hundred eight thousand, four hundred eighty-eight".