1268892044 has 36 divisors (see below), whose sum is σ = 2585136960. Its totient is φ = 543382560.

The previous prime is 1268892043. The next prime is 1268892047. The reversal of 1268892044 is 4402988621.

It is a super-2 number, since 2×1268892044² = 3220174038652995872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268891986 and 1268892004.

It is not an unprimeable number, because it can be changed into a prime (1268892043) 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 11 ways as a sum of consecutive naturals, for example, 465317 + ... + 468035.

It is an arithmetic number, because the mean of its divisors is an integer number (71809360).

Almost surely, 2^1268892044 is an apocalyptic number.

1268892044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1268892044 is an abundant number, since it is smaller than the sum of its proper divisors (1316244916).

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

1268892044 is a wasteful number, since it uses less digits than its factorization.

1268892044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5118 (or 5109 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 1268892044 is about 35621.5109730062. The cubic root of 1268892044 is about 1082.6171222704.

The spelling of 1268892044 in words is "one billion, two hundred sixty-eight million, eight hundred ninety-two thousand, forty-four".