1208799144 has 288 divisors, whose sum is σ = 4088061120. Its totient is φ = 315850752.

The previous prime is 1208799079. The next prime is 1208799167. The reversal of 1208799144 is 4419978021.

It is a happy number.

It is a super-2 number, since 2×1208799144² = 2922390741070265472, 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 1208799144.

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 71 ways as a sum of consecutive naturals, for example, 6263112 + ... + 6263304.

Almost surely, 2^1208799144 is an apocalyptic number.

1208799144 is a gapful number since it is divisible by the number (14) 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 1208799144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2044030560).

1208799144 is an abundant number, since it is smaller than the sum of its proper divisors (2879261976).

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

1208799144 is a wasteful number, since it uses less digits than its factorization.

1208799144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 1208799144 is about 34767.7888856913. The cubic root of 1208799144 is about 1065.2496036000.

The spelling of 1208799144 in words is "one billion, two hundred eight million, seven hundred ninety-nine thousand, one hundred forty-four".