1248078490 has 16 divisors (see below), whose sum is σ = 2247163848. Its totient is φ = 499093056.

The previous prime is 1248078473. The next prime is 1248078523. The reversal of 1248078490 is 948708421.

It can be written as a sum of positive squares in 4 ways, for example, as 638926729 + 609151761 = 25277^2 + 24681^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25684 + ... + 56176.

Almost surely, 2^1248078490 is an apocalyptic number.

1248078490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248078490 is a deficient number, since it is larger than the sum of its proper divisors (999085358).

1248078490 is a wasteful number, since it uses less digits than its factorization.

1248078490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34593.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1248078490 is about 35328.1543531501. The cubic root of 1248078490 is about 1076.6650929036.

The spelling of 1248078490 in words is "one billion, two hundred forty-eight million, seventy-eight thousand, four hundred ninety".