1248172842 has 16 divisors (see below), whose sum is σ = 2852966592. Its totient is φ = 356620800.

The previous prime is 1248172831. The next prime is 1248172873. The reversal of 1248172842 is 2482718421.

It is a self number, because there is not a number n which added to its sum of digits gives 1248172842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14859159 + ... + 14859242.

It is an arithmetic number, because the mean of its divisors is an integer number (178310412).

Almost surely, 2^1248172842 is an apocalyptic number.

1248172842 is an abundant number, since it is smaller than the sum of its proper divisors (1604793750).

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

1248172842 is a wasteful number, since it uses less digits than its factorization.

1248172842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29718413.

The product of its digits is 57344, while the sum is 39.

The square root of 1248172842 is about 35329.4896934558. The cubic root of 1248172842 is about 1076.6922233941.

The spelling of 1248172842 in words is "one billion, two hundred forty-eight million, one hundred seventy-two thousand, eight hundred forty-two".