1229940448 has 24 divisors (see below), whose sum is σ = 2641577400. Its totient is φ = 559063680.

The previous prime is 1229940443. The next prime is 1229940449. The reversal of 1229940448 is 8440499221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229940443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746723 + ... + 1747426.

It is an arithmetic number, because the mean of its divisors is an integer number (110065725).

Almost surely, 2^1229940448 is an apocalyptic number.

It is an amenable number.

1229940448 is an abundant number, since it is smaller than the sum of its proper divisors (1411636952).

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

1229940448 is a wasteful number, since it uses less digits than its factorization.

1229940448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494170 (or 3494162 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 1229940448 is about 35070.5068112795. The cubic root of 1229940448 is about 1071.4239776853.

The spelling of 1229940448 in words is "one billion, two hundred twenty-nine million, nine hundred forty thousand, four hundred forty-eight".