1229398046 has 4 divisors (see below), whose sum is σ = 1844097072. Its totient is φ = 614699022.

The previous prime is 1229398033. The next prime is 1229398067. The reversal of 1229398046 is 6408939221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6408939221 = 18461 ⋅347161.

It is a super-2 number, since 2×1229398046² = 3022839111017236232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229397988 and 1229398006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307349510 + ... + 307349513.

It is an arithmetic number, because the mean of its divisors is an integer number (461024268).

Almost surely, 2^1229398046 is an apocalyptic number.

1229398046 is a deficient number, since it is larger than the sum of its proper divisors (614699026).

1229398046 is an equidigital number, since it uses as much as digits as its factorization.

1229398046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614699025.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 1229398046 is about 35062.7729365491. The cubic root of 1229398046 is about 1071.2664557072.

The spelling of 1229398046 in words is "one billion, two hundred twenty-nine million, three hundred ninety-eight thousand, forty-six".