1229385698 has 6 divisors (see below), whose sum is σ = 1844152929. Its totient is φ = 614668056.

The previous prime is 1229385667. The next prime is 1229385727. The reversal of 1229385698 is 8965839221.

It can be written as a sum of positive squares in 2 ways, for example, as 799362529 + 430023169 = 28273^2 + 20737^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24793.

It is a super-2 number, since 2×1229385698² = 3022778388893894408, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 37190 + ... + 61982.

Almost surely, 2^1229385698 is an apocalyptic number.

1229385698 is a deficient number, since it is larger than the sum of its proper divisors (614767231).

1229385698 is an frugal number, since it uses more digits than its factorization.

1229385698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49588 (or 24795 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 1229385698 is about 35062.5968519161. The cubic root of 1229385698 is about 1071.2628691166.

The spelling of 1229385698 in words is "one billion, two hundred twenty-nine million, three hundred eighty-five thousand, six hundred ninety-eight".