1229651696 has 80 divisors (see below), whose sum is σ = 2939686848. Its totient is φ = 485222400.

The previous prime is 1229651677. The next prime is 1229651711. The reversal of 1229651696 is 6961569221.

It is a self number, because there is not a number n which added to its sum of digits gives 1229651696.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 757766 + ... + 759386.

Almost surely, 2^1229651696 is an apocalyptic number.

1229651696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229651696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1469843424).

1229651696 is an abundant number, since it is smaller than the sum of its proper divisors (1710035152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1229651696 is a wasteful number, since it uses less digits than its factorization.

1229651696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170 (or 2164 counting only the distinct ones).

The product of its digits is 349920, while the sum is 47.

The square root of 1229651696 is about 35066.3898341418. The cubic root of 1229651696 is about 1071.3401253788.

The spelling of 1229651696 in words is "one billion, two hundred twenty-nine million, six hundred fifty-one thousand, six hundred ninety-six".