289021602402 has 192 divisors, whose sum is σ = 698291193600. Its totient is φ = 85833312768.

The previous prime is 289021602371. The next prime is 289021602403. The reversal of 289021602402 is 204206120982.

289021602402 is a `hidden beast` number, since 2 + 8 + 9 + 0 + 2 + 1 + 602 + 40 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (289021602403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 394299228 + ... + 394299960.

It is an arithmetic number, because the mean of its divisors is an integer number (3636933300).

Almost surely, 2^289021602402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 289021602402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349145596800).

289021602402 is an abundant number, since it is smaller than the sum of its proper divisors (409269591198).

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

289021602402 is a wasteful number, since it uses less digits than its factorization.

289021602402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 289021602402 in words is "two hundred eighty-nine billion, twenty-one million, six hundred two thousand, four hundred two".