1044635140 has 12 divisors (see below), whose sum is σ = 2193733836. Its totient is φ = 417854048.

The previous prime is 1044635101. The next prime is 1044635147. The reversal of 1044635140 is 415364401.

1044635140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 141752836 + 902882304 = 11906^2 + 30048^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1044635099 and 1044635108.

It is not an unprimeable number, because it can be changed into a prime (1044635147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26115859 + ... + 26115898.

It is an arithmetic number, because the mean of its divisors is an integer number (182811153).

Almost surely, 2^1044635140 is an apocalyptic number.

1044635140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044635140 is an abundant number, since it is smaller than the sum of its proper divisors (1149098696).

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

1044635140 is a wasteful number, since it uses less digits than its factorization.

1044635140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52231766 (or 52231764 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1044635140 is about 32320.8158931671. The cubic root of 1044635140 is about 1014.6623449166.

Adding to 1044635140 its reverse (415364401), we get a palindrome (1459999541).

The spelling of 1044635140 in words is "one billion, forty-four million, six hundred thirty-five thousand, one hundred forty".