1229352646 has 16 divisors (see below), whose sum is σ = 1871278848. Its totient is φ = 605605000.

The previous prime is 1229352643. The next prime is 1229352667. The reversal of 1229352646 is 6462539221.

It is a super-2 number, since 2×1229352646² = 3022615856454402632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229352599 and 1229352608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229352643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376521 + ... + 379771.

It is an arithmetic number, because the mean of its divisors is an integer number (116954928).

Almost surely, 2^1229352646 is an apocalyptic number.

1229352646 is a deficient number, since it is larger than the sum of its proper divisors (641926202).

1229352646 is a wasteful number, since it uses less digits than its factorization.

1229352646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5987.

The product of its digits is 155520, while the sum is 40.

The square root of 1229352646 is about 35062.1255202819. The cubic root of 1229352646 is about 1071.2532687398.

The spelling of 1229352646 in words is "one billion, two hundred twenty-nine million, three hundred fifty-two thousand, six hundred forty-six".