290408429968 has 40 divisors (see below), whose sum is σ = 583342719480. Its totient is φ = 139890293760.

The previous prime is 290408429921. The next prime is 290408430031. The reversal of 290408429968 is 869924804092.

It can be written as a sum of positive squares in 4 ways, for example, as 25685831824 + 264722598144 = 160268^2 + 514512^2 .

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 7 ways as a sum of consecutive naturals, for example, 472723 + ... + 896818.

It is an arithmetic number, because the mean of its divisors is an integer number (14583567987).

Almost surely, 2^290408429968 is an apocalyptic number.

It is an amenable number.

290408429968 is an abundant number, since it is smaller than the sum of its proper divisors (292934289512).

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

290408429968 is a wasteful number, since it uses less digits than its factorization.

290408429968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370035 (or 1370029 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 290408429968 in words is "two hundred ninety billion, four hundred eight million, four hundred twenty-nine thousand, nine hundred sixty-eight".