290612521242 has 96 divisors (see below), whose sum is σ = 657174570624. Its totient is φ = 92728540800.

The previous prime is 290612521237. The next prime is 290612521259. The reversal of 290612521242 is 242125216092.

290612521242 is a `hidden beast` number, since 2 + 90 + 6 + 1 + 2 + 521 + 2 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 290612521197 and 290612521206.

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 47 ways as a sum of consecutive naturals, for example, 23211168 + ... + 23223684.

It is an arithmetic number, because the mean of its divisors is an integer number (6845568444).

Almost surely, 2^290612521242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290612521242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328587285312).

290612521242 is an abundant number, since it is smaller than the sum of its proper divisors (366562049382).

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

290612521242 is a wasteful number, since it uses less digits than its factorization.

290612521242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124 (or 13121 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 290612521242 in words is "two hundred ninety billion, six hundred twelve million, five hundred twenty-one thousand, two hundred forty-two".