1268371444 has 12 divisors (see below), whose sum is σ = 2220367968. Its totient is φ = 633980600.

The previous prime is 1268371441. The next prime is 1268371453. The reversal of 1268371444 is 4441738621.

It is a super-2 number, since 2×1268371444² = 3217532239909290272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268371397 and 1268371406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268371441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36922 + ... + 62449.

It is an arithmetic number, because the mean of its divisors is an integer number (185030664).

Almost surely, 2^1268371444 is an apocalyptic number.

It is an amenable number.

1268371444 is a deficient number, since it is larger than the sum of its proper divisors (951996524).

1268371444 is a wasteful number, since it uses less digits than its factorization.

1268371444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102566 (or 102564 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 1268371444 is about 35614.2028410015. The cubic root of 1268371444 is about 1082.4690435920.

The spelling of 1268371444 in words is "one billion, two hundred sixty-eight million, three hundred seventy-one thousand, four hundred forty-four".