1199447040 has 352 divisors, whose sum is σ = 4338984960. Its totient is φ = 280166400.

The previous prime is 1199447023. The next prime is 1199447063. The reversal of 1199447040 is 407449911.

It is a tau number, because it is divible by the number of its divisors (352).

It is a self number, because there is not a number n which added to its sum of digits gives 1199447040.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5237646 + ... + 5237874.

Almost surely, 2^1199447040 is an apocalyptic number.

1199447040 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 1199447040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169492480).

1199447040 is an abundant number, since it is smaller than the sum of its proper divisors (3139537920).

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

1199447040 is a wasteful number, since it uses less digits than its factorization.

1199447040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1199447040 is about 34633.0339415997. The cubic root of 1199447040 is about 1062.4953197487.

The spelling of 1199447040 in words is "one billion, one hundred ninety-nine million, four hundred forty-seven thousand, forty".