1229446000 has 80 divisors (see below), whose sum is σ = 3006637920. Its totient is φ = 486182400.

The previous prime is 1229445991. The next prime is 1229446013. The reversal of 1229446000 is 6449221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 1229446000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174547 + ... + 181453.

It is an arithmetic number, because the mean of its divisors is an integer number (37582974).

Almost surely, 2^1229446000 is an apocalyptic number.

1229446000 is a gapful number since it is divisible by the number (10) 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 1229446000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1503318960).

1229446000 is an abundant number, since it is smaller than the sum of its proper divisors (1777191920).

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

1229446000 is an equidigital number, since it uses as much as digits as its factorization.

1229446000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7019 (or 7003 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1229446000 is about 35063.4567605648. The cubic root of 1229446000 is about 1071.2803841615.

The spelling of 1229446000 in words is "one billion, two hundred twenty-nine million, four hundred forty-six thousand".