1279562448 has 80 divisors (see below), whose sum is σ = 3591833600. Its totient is φ = 391029120.

The previous prime is 1279562423. The next prime is 1279562483. The reversal of 1279562448 is 8442659721.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 1279562397 and 1279562406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5643 + ... + 50901.

It is an arithmetic number, because the mean of its divisors is an integer number (44897920).

Almost surely, 2^1279562448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1279562448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795916800).

1279562448 is an abundant number, since it is smaller than the sum of its proper divisors (2312271152).

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

1279562448 is a wasteful number, since it uses less digits than its factorization.

1279562448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45320 (or 45314 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 1279562448 is about 35770.9721422273. The cubic root of 1279562448 is about 1085.6433139071.

The spelling of 1279562448 in words is "one billion, two hundred seventy-nine million, five hundred sixty-two thousand, four hundred forty-eight".