1239222994 has 8 divisors (see below), whose sum is σ = 1861372620. Its totient is φ = 618765456.

The previous prime is 1239222979. The next prime is 1239223019. The reversal of 1239222994 is 4992229321.

It can be written as a sum of positive squares in 2 ways, for example, as 1237984225 + 1238769 = 35185^2 + 1113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1239222994.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421189 + ... + 424120.

Almost surely, 2^1239222994 is an apocalyptic number.

1239222994 is a deficient number, since it is larger than the sum of its proper divisors (622149626).

1239222994 is an equidigital number, since it uses as much as digits as its factorization.

1239222994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846044.

The product of its digits is 139968, while the sum is 43.

The square root of 1239222994 is about 35202.5992506235. The cubic root of 1239222994 is about 1074.1126245452.

The spelling of 1239222994 in words is "one billion, two hundred thirty-nine million, two hundred twenty-two thousand, nine hundred ninety-four".