290221424712 has 60 divisors (see below), whose sum is σ = 812927125395. Its totient is φ = 96735903696.

The previous prime is 290221424707. The next prime is 290221424719. The reversal of 290221424712 is 217424122092.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

290221424712 is a `hidden beast` number, since 2 + 9 + 0 + 221 + 424 + 7 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 145110712356 + 145110712356 = 380934^2 + 380934^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=380934.

It is a super-3 number, since 3×290221424712³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (290221424719) by changing a digit.

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 14 ways as a sum of consecutive naturals, for example, 13703043 + ... + 13724205.

Almost surely, 2^290221424712 is an apocalyptic number.

It is an amenable number.

290221424712 is an abundant number, since it is smaller than the sum of its proper divisors (522705700683).

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

290221424712 is an frugal number, since it uses more digits than its factorization.

290221424712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42344 (or 21168 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 290221424712 in words is "two hundred ninety billion, two hundred twenty-one million, four hundred twenty-four thousand, seven hundred twelve".