1229679396 has 36 divisors (see below), whose sum is σ = 3390935184. Its totient is φ = 372630000.

The previous prime is 1229679389. The next prime is 1229679397. The reversal of 1229679396 is 6939769221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1229679396² = 3024222833893849632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1229679397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1552230 + ... + 1553021.

It is an arithmetic number, because the mean of its divisors is an integer number (94192644).

Almost surely, 2^1229679396 is an apocalyptic number.

It is an amenable number.

1229679396 is an abundant number, since it is smaller than the sum of its proper divisors (2161255788).

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

1229679396 is a wasteful number, since it uses less digits than its factorization.

1229679396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105272 (or 3105267 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 1229679396 is about 35066.7847970127. The cubic root of 1229679396 is about 1071.3481699058.

It can be divided in two parts, 1229 and 679396, that added together give a square (680625 = 825²).

The spelling of 1229679396 in words is "one billion, two hundred twenty-nine million, six hundred seventy-nine thousand, three hundred ninety-six".