1278948098 has 8 divisors (see below), whose sum is σ = 1919720208. Its totient is φ = 639041364.

The previous prime is 1278948091. The next prime is 1278948103. The reversal of 1278948098 is 8908498721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1278948091) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 212636 + ... + 218567.

It is an arithmetic number, because the mean of its divisors is an integer number (239965026).

Almost surely, 2^1278948098 is an apocalyptic number.

1278948098 is a deficient number, since it is larger than the sum of its proper divisors (640772110).

1278948098 is a wasteful number, since it uses less digits than its factorization.

1278948098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432688.

The product of its (nonzero) digits is 2322432, while the sum is 56.

The square root of 1278948098 is about 35762.3838411256. The cubic root of 1278948098 is about 1085.4695379049.

The spelling of 1278948098 in words is "one billion, two hundred seventy-eight million, nine hundred forty-eight thousand, ninety-eight".