1248158880 has 72 divisors (see below), whose sum is σ = 4259347092. Its totient is φ = 332841984.

The previous prime is 1248158867. The next prime is 1248158929. The reversal of 1248158880 is 888518421.

1248158880 is a `hidden beast` number, since 12 + 481 + 5 + 88 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1126542096 + 121616784 = 33564^2 + 11028^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431949 + ... + 434828.

Almost surely, 2^1248158880 is an apocalyptic number.

1248158880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1248158880 is an abundant number, since it is smaller than the sum of its proper divisors (3011188212).

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

1248158880 is a wasteful number, since it uses less digits than its factorization.

1248158880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866798 (or 866787 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 45.

The square root of 1248158880 is about 35329.2920959365. The cubic root of 1248158880 is about 1076.6882087704.

The spelling of 1248158880 in words is "one billion, two hundred forty-eight million, one hundred fifty-eight thousand, eight hundred eighty".