1278750230 has 32 divisors (see below), whose sum is σ = 2361598848. Its totient is φ = 498240000.

The previous prime is 1278750223. The next prime is 1278750269. The reversal of 1278750230 is 320578721.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 305834 + ... + 309986.

It is an arithmetic number, because the mean of its divisors is an integer number (73799964).

Almost surely, 2^1278750230 is an apocalyptic number.

1278750230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1278750230 is a deficient number, since it is larger than the sum of its proper divisors (1082848618).

1278750230 is a wasteful number, since it uses less digits than its factorization.

1278750230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1278750230 is about 35759.6173077957. The cubic root of 1278750230 is about 1085.4135568050.

The spelling of 1278750230 in words is "one billion, two hundred seventy-eight million, seven hundred fifty thousand, two hundred thirty".