1264442118 has 16 divisors (see below), whose sum is σ = 2538962496. Its totient is φ = 419801000.

The previous prime is 1264442059. The next prime is 1264442171. The reversal of 1264442118 is 8112444621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418296 + ... + 421307.

It is an arithmetic number, because the mean of its divisors is an integer number (158685156).

Almost surely, 2^1264442118 is an apocalyptic number.

1264442118 is an abundant number, since it is smaller than the sum of its proper divisors (1274520378).

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

1264442118 is a wasteful number, since it uses less digits than its factorization.

1264442118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839859.

The product of its digits is 12288, while the sum is 33.

The square root of 1264442118 is about 35558.9948958066. The cubic root of 1264442118 is about 1081.3500828516.

Adding to 1264442118 its reverse (8112444621), we get a palindrome (9376886739).

The spelling of 1264442118 in words is "one billion, two hundred sixty-four million, four hundred forty-two thousand, one hundred eighteen".