429221508242 has 6 divisors (see below), whose sum is σ = 643833652149. Its totient is φ = 214610290860.

The previous prime is 429221508223. The next prime is 429221508257. The reversal of 429221508242 is 242805122924.

It can be written as a sum of positive squares in 2 ways, for example, as 348252236641 + 80969271601 = 590129^2 + 284551^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=463261.

It is a super-2 number, since 2×429221508242² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 429221508242.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 694892 + ... + 1158152.

Almost surely, 2^429221508242 is an apocalyptic number.

429221508242 is a deficient number, since it is larger than the sum of its proper divisors (214612143907).

429221508242 is an frugal number, since it uses more digits than its factorization.

429221508242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926524 (or 463263 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 429221508242 in words is "four hundred twenty-nine billion, two hundred twenty-one million, five hundred eight thousand, two hundred forty-two".