1279488000 has 624 divisors, whose sum is σ = 5244074784. Its totient is φ = 275251200.

The previous prime is 1279487977. The next prime is 1279488019. The reversal of 1279488000 is 8849721.

It is a self number, because there is not a number n which added to its sum of digits gives 1279488000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75263992 + ... + 75264008.

It is an arithmetic number, because the mean of its divisors is an integer number (8403966).

Almost surely, 2^1279488000 is an apocalyptic number.

1279488000 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 1279488000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2622037392).

1279488000 is an abundant number, since it is smaller than the sum of its proper divisors (3964586784).

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

1279488000 is an equidigital number, since it uses as much as digits as its factorization.

1279488000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 1279488000 is about 35769.9315067837. The cubic root of 1279488000 is about 1085.6222583916.

The spelling of 1279488000 in words is "one billion, two hundred seventy-nine million, four hundred eighty-eight thousand".