1291848048 has 80 divisors (see below), whose sum is σ = 3714841600. Its totient is φ = 429831360.

The previous prime is 1291848031. The next prime is 1291848059. The reversal of 1291848048 is 8408481921.

1291848048 is a `hidden beast` number, since 129 + 1 + 8 + 480 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1291847994 and 1291848012.

It is a congruent 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, 264993 + ... + 269823.

It is an arithmetic number, because the mean of its divisors is an integer number (46435520).

Almost surely, 2^1291848048 is an apocalyptic number.

1291848048 is a gapful number since it is divisible by the number (18) 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 1291848048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1857420800).

1291848048 is an abundant number, since it is smaller than the sum of its proper divisors (2422993552).

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

1291848048 is a wasteful number, since it uses less digits than its factorization.

1291848048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5455 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 45.

The square root of 1291848048 is about 35942.2877402093. The cubic root of 1291848048 is about 1089.1068204151.

The spelling of 1291848048 in words is "one billion, two hundred ninety-one million, eight hundred forty-eight thousand, forty-eight".