1229444652 has 24 divisors (see below), whose sum is σ = 2869495216. Its totient is φ = 409701888.

The previous prime is 1229444651. The next prime is 1229444663. The reversal of 1229444652 is 2564449221.

It is a happy number.

It is a super-2 number, since 2×1229444652² = 3023068304662802208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1229444652.

It is not an unprimeable number, because it can be changed into a prime (1229444651) 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, 39288 + ... + 63264.

Almost surely, 2^1229444652 is an apocalyptic number.

1229444652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1229444652 is an abundant number, since it is smaller than the sum of its proper divisors (1640050564).

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

1229444652 is a wasteful number, since it uses less digits than its factorization.

1229444652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28257 (or 28255 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 1229444652 is about 35063.4375382677. The cubic root of 1229444652 is about 1071.2799926338.

It can be divided in two parts, 1229444 and 652, that added together give a triangular number (1230096 = T₁₅₆₈).

The spelling of 1229444652 in words is "one billion, two hundred twenty-nine million, four hundred forty-four thousand, six hundred fifty-two".