1264043078 has 16 divisors (see below), whose sum is σ = 1924818336. Its totient is φ = 622502400.

The previous prime is 1264043071. The next prime is 1264043111. The reversal of 1264043078 is 8703404621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264043071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22775 + ... + 55197.

It is an arithmetic number, because the mean of its divisors is an integer number (120301146).

Almost surely, 2^1264043078 is an apocalyptic number.

1264043078 is a deficient number, since it is larger than the sum of its proper divisors (660775258).

1264043078 is a wasteful number, since it uses less digits than its factorization.

1264043078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32719.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1264043078 is about 35553.3834958081. The cubic root of 1264043078 is about 1081.2363179665.

Adding to 1264043078 its reverse (8703404621), we get a palindrome (9967447699).

The spelling of 1264043078 in words is "one billion, two hundred sixty-four million, forty-three thousand, seventy-eight".