1279888352 has 24 divisors (see below), whose sum is σ = 2548098000. Its totient is φ = 632752384.

The previous prime is 1279888319. The next prime is 1279888369. The reversal of 1279888352 is 2538889721.

It is a happy number.

It is a super-2 number, since 2×1279888352² = 3276228387170551808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1279888294 and 1279888303.

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 3 ways as a sum of consecutive naturals, for example, 221852 + ... + 227547.

It is an arithmetic number, because the mean of its divisors is an integer number (106170750).

Almost surely, 2^1279888352 is an apocalyptic number.

It is an amenable number.

1279888352 is a deficient number, since it is larger than the sum of its proper divisors (1268209648).

1279888352 is an equidigital number, since it uses as much as digits as its factorization.

1279888352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449498 (or 449490 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 53.

The square root of 1279888352 is about 35775.5272777355. The cubic root of 1279888352 is about 1085.7354770432.

The spelling of 1279888352 in words is "one billion, two hundred seventy-nine million, eight hundred eighty-eight thousand, three hundred fifty-two".