1278050448 has 80 divisors (see below), whose sum is σ = 3448618560. Its totient is φ = 407443968.

The previous prime is 1278050419. The next prime is 1278050509. The reversal of 1278050448 is 8440508721.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98686 + ... + 110882.

It is an arithmetic number, because the mean of its divisors is an integer number (43107732).

Almost surely, 2^1278050448 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 1278050448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1724309280).

1278050448 is an abundant number, since it is smaller than the sum of its proper divisors (2170568112).

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

1278050448 is a wasteful number, since it uses less digits than its factorization.

1278050448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12304 (or 12298 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 1278050448 is about 35749.8314401621. The cubic root of 1278050448 is about 1085.2155271334.

The spelling of 1278050448 in words is "one billion, two hundred seventy-eight million, fifty thousand, four hundred forty-eight".