290443968 has 140 divisors (see below), whose sum is σ = 868542840. Its totient is φ = 95966208.

The previous prime is 290443957. The next prime is 290443981. The reversal of 290443968 is 869344092.

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 19 ways as a sum of consecutive naturals, for example, 927780 + ... + 928092.

Almost surely, 2^290443968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290443968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434271420).

290443968 is an abundant number, since it is smaller than the sum of its proper divisors (578098872).

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

290443968 is a wasteful number, since it uses less digits than its factorization.

290443968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 290443968 is about 17042.4167300298. The cubic root of 290443968 is about 662.2482008803.

The spelling of 290443968 in words is "two hundred ninety million, four hundred forty-three thousand, nine hundred sixty-eight".